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Details for Patent: 5,985,902

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Details for Patent: 5,985,902

Title: Substituted isoxazole for the treatment of inflammation
Abstract:A class of substituted isoxazolyl compounds is described for use in treating inflammation and inflammation-related disorders. Compounds of particular interest are defined by Formula II ##STR1## wherein R.sup.1 is selected from hydroxyl, lower alkyl, carboxyl, lower carboxyalkyl, lower aminocarbonylalkyl, lower alkoxycarbonylalkyl, lower aralkyl, lower alkoxyalkyl, lower aralkoxyalkyl, lower alkylthioalkyl, lower aralkylthioalkyl, lower alkylaminoalkyl, lower aryloxyalkyl, lower arylthioalkyl, lower haloalkyl, lower hydroxylalkyl, cycloalkyl, cycloalkylalkyl, and aralkyl; wherein R.sup.3 is selected from cycloalkyl, cycloalkenyl, aryl, and heteroaryl; wherein R.sup.3 is optionally substituted at a substitutable position with one or more radicals independently selected from lower alkylsulfinyl, lower alkyl, cyano, carboxyl, lower alkoxycarbonyl, lower haloalkyl, hydroxyl, lower hydroxyalkyl, lower haloalkoxy, amino, lower alkylamino, lower arylamino, lower aminoalkyl, nitro, halo, lower alkoxy, aminosulfonyl, and lower alkylthio; and wherein R.sup.4 is selected from lower alkyl, hydroxyl and amino; or a pharmaceutically-acceptable salt thereof.
Inventor(s): Talley; John J (Brentwood, MO), Nagarajan; Srinivasan (Chesterfield, MO), Rogers; Roland S (Richmond Heights, MO)
Assignee: G.D. Searle & Co. (Skokie, IL)
Filing Date:Feb 18, 1997
Application Number:08/801,768
Claims:1. A compound of Formula II ##STR32## wherein R.sup.1 is selected from alkyl, carboxyalkyl, alkoxycarbonyl, aminocarbonyl, aminocarbonylalkyl, alkoxycarbonylalkyl, carboxyl, alkoxy, haloalkoxy, aralkoxy, pyridylmethoxy, cycloalkylalkoxy, alkylthio, aralkylthio, pyridylmethylthio, cycloalkylalkylthio, alkoxyalkyl, aralkoxyalkyl, alkylthioalkyl, aralkylthioalkyl, alkylaminoalkyl, aryloxyalkyl, arylthioalkyl, hydroxyl, amino, hydroxyalkyl, haloalkyl, cycloalkyl, cycloalkylalkyl, pyridyl, pyridylmethyl, aralkyl wherein the aryl ring is optionally substituted with one or more radicals selected from halo, alkyl, alkoxy, haloalkyl and haloalkoxy, halo, alkylamino, aralkylamino, N-alkyl-N-aralkylamino, pyridylmethylamino, N-alkyl-N-pyridylmethylamino, N-alkyl-N-cycloalkylalkylamino, arylcarbonyloxyalkyl, arylcarbonylthio, alkoxycarbonyloxyalkyl, alkylaminocarbonyloxyalkyl, alkoxycarbonylthioalkyl, and alkylaminocarbonylthioalkyl;

wherein R.sup.3 is selected from cycloalkyl, cycloalkenyl, aryl and pyridyl; wherein R.sup.3 is optionally substituted at a substitutable position with one or more radicals independently selected from alkyl, cyano, carboxyl, alkoxycarbonyl, haloalkyl, hydroxyl, hydroxyalkyl, haloalkoxy, amino, alkylamino, arylamino, aminoalkyl, nitro, alkoxyalkyl, alkylsulfinyl, alkylsulfonyl, aminosulfonyl, halo, alkoxy and alkylthio; and

wherein R.sup.4 is selected from alkyl, hydroxyl, and amino;

provided R.sup.1 is selected from pyridylmethoxy, pyridylmethylthio, pyridyl, pyridylmethyl, pyridylmethylamino and N-alkyl-N-pyridylmethylamino, when R.sup.3 is selected from cycloalkyl, cycloalkenyl and aryl;

or a pharmaceutically-acceptable salt thereof.

2. Compound of claim 1 wherein R.sup.1 is selected from hydroxyl, amino, lower alkyl, lower carboxyalkyl, lower alkoxycarbonyl, aminocarbonyl, carboxyl, lower aminocarbonylalkyl, lower alkoxycarbonylalkyl, lower alkoxy, lower haloalkoxy, lower aralkoxy, pyridylmethoxy, lower cycloalkylalkoxy, lower alkylthio, lower aralkylthio, pyridylmethylthio, lower cycloalkylalkylthio, lower alkoxyalkyl, lower aralkoxyalkyl, lower alkylthioalkyl, lower aralkylthioalkyl, lower alkylaminoalkyl, lower aryloxyalkyl, lower arylthioalkyl, lower hydroxyalkyl, lower haloalkyl, lower cycloalkyl, lower cycloalkylalkyl, pyridyl, pyridylmethyl, lower aralkyl wherein the aryl ring is optionally substituted with one or more radicals selected from fluoro, chloro, bromo, iodo, methyl, and methoxy, halo, lower alkylamino, lower aralkylamino, lower N-alkyl-N-aralkylamino, pyridylmethylamino and N-lower alkyl-N-pyridylmethylamino, lower N-alkyl-N-cycloalkylalkylamino, lower arylcarbonyloxyalkyl, lower alkoxycarbonyloxyalkyl, lower alkylaminocarbonyloxyalkyl, lower alkoxycarbonylthioalkyl, and lower alkylaminocarbonylthioalkyl; wherein R.sup.3 is selected from cycloalkyl, cycloalkenyl, aryl, and pyridyl; wherein R.sup.3 is optionally substituted at a substitutable position with one or more radicals independently selected from lower alkylsulfinyl, lower alkyl, cyano, carboxyl, lower alkoxycarbonyl, lower haloalkyl, hydroxyl, lower hydroxyalkyl, lower haloalkoxy, amino, lower alkylamino, lower arylamino, lower aminoalkyl, nitro, halo, lower alkoxy, lower alkylsulfonyl, aminosulfonyl, and lower alkylthio; and wherein R.sup.4 is selected from lower alkyl, hydroxyl and amino; or a pharmaceutically-acceptable salt thereof.

3. Compound of claim 2 wherein R.sup.1 selected from hydroxyl, lower alkyl, carboxyl, lower carboxyalkyl, lower aminocarbonylalkyl, lower alkoxycarbonylalkyl, lower aralkyl wherein the aryl ring is optionally substituted with one or more radicals selected from fluoro, chloro, bromo, iodo, methyl, and methoxy, lower alkoxyalkyl, lower aralkoxyalkyl, lower alkylthioalkyl, lower aralkylthioalkyl, lower alkylaminoalkyl, lower aryloxyalkyl, lower arylthioalkyl, lower haloalkyl, lower hydroxylalkyl, cycloalkyl, and cycloalkylalkyl; wherein R.sup.3 is selected from cycloalkyl, cycloalkenyl, aryl, and pyridyl; wherein R.sup.3 is optionally substituted at a substitutable position with one or more radicals independently selected from lower alkylsulfinyl, lower alkyl, cyano, carboxyl, lower alkoxycarbonyl, lower haloalkyl, hydroxyl, lower hydroxyalkyl, lower haloalkoxy, amino, lower alkylamino, lower arylamino, lower aminoalkyl, nitro, halo, lower alkoxy, aminosulfonyl, and lower alkylthio; and wherein R.sup.4 is selected from lower alkyl, hydroxyl and amino; or a pharmaceutically-acceptable salt thereof.

4. Compound of claim 3 wherein R.sup.1 is selected from hydroxyl, methyl, ethyl, propyl, isopropyl, butyl, tert-butyl, isobutyl, pentyl, neopentyl, hexyl, carboxyl, carboxypropyl, carboxymethyl, carboxyethyl, aminocarbonylmethyl, methoxycarbonylmethyl, methoxycarbonylethyl, methoxymethyl, benzoxymethyl, phenylethoxymethyl, methylthiomethyl, benzylthiomethyl, N-methylaminomethyl, N,N-dimethylaminomethyl, phenyloxymethyl, phenylthiomethyl, fluoromethyl, difluoromethyl, trifluoromethyl, chloromethyl, dichloromethyl, trichloromethyl, pentafluoroethyl, heptafluoropropyl, fluoromethyl, difluoroethyl, difluoropropyl, dichloroethyl, dichloropropyl, hydroxylmethyl, hydroxylpropyl, hydroxylethyl, cyclohexyl, cyclobutyl, cyclopentyl, cycloheptyl, cyclohexylmethyl, cyclohexylethyl, cyclobutylethyl, cyclopentylmethyl, cycloheptylpropyl, and lower aralkyl selected from benzyl and phenylethyl, wherein the phenyl ring is optionally substituted with one or more radicals selected from fluoro, chloro, bromo, iodo, methyl, and methoxy; wherein R.sup.3 is selected from phenyl, naphthyl, biphenyl, cyclohexyl, cyclopentyl, cycloheptyl, 1-cyclohexenyl, 2-cyclohexenyl, 3-cyclohexenyl, 4-cyclohexenyl, 1-cyclopentenyl, and pyridyl; wherein R.sup.3 is optionally substituted at a substitutable position with one or more radicals independently selected from trifluoromethoxy, N-methylamino, N,N-dimethylamino, N-ethylamino, N,N-dipropylamino, N-butylamino, N-methyl-N-ethylamino, phenylamino, N-methyl-N-phenylamino, methylsulfinyl, ethylsulfinyl, methyl, ethyl, isopropyl, butyl, tert-butyl, isobutyl, pentyl, hexyl, cyano, carboxyl, methoxycarbonyl, fluoromethyl, difluoromethyl, trifluoromethyl, chloromethyl, dichloromethyl, trichloromethyl, pentafluoroethyl, heptafluoropropyl, fluoromethyl, difluoroethyl, difluoropropyl, dichloroethyl, dichloropropyl, hydroxyl, hydroxymethyl, amino, nitro, fluoro, chloro, bromo, iodo, methoxy, ethoxy, propoxy, n-butoxy, pentoxy, hexyloxy, aminosulfonyl, methylthio, ethylthio, butylthio, and hexylthio; and wherein R.sup.4 is selected from methyl, hydroxyl and amino; or a pharmaceutically-acceptable salt thereof.

5. A compound of Formula III ##STR33## wherein R.sup.1 is selected from hydroxyl, alkyl, carboxyalkyl, aminocarbonylalkyl, alkoxycarbonylalkyl, carboxyl, alkoxy, haloalkoxy, aralkoxy, pyridylmethoxy, cycloalkylalkoxy, alkylthio, aralkylthio, pyridylmethylthio, cycloalkylalkylthio, alkoxyalkyl, aralkoxyalkyl, alkylthioalkyl, aralkylthioalkyl, alkylaminoalkyl, aryloxyalkyl, arylthioalkyl, hydroxyalkyl, haloalkyl, cycloalkyl, cycloalkylalkyl, pyridyl, pyridylmethyl, aralkyl wherein the aryl ring is optionally substituted with one or more radicals selected from halo, alkyl, alkoxy, haloalkyl and haloalkoxy, halo, alkylamino, aralkylamino, N-alkyl-N-aralkylamino, N-pyridylmethylamino, N-alkyl-N-pyridylmethylamino, N-alkyl-N-cycloalkylalkylamino, arylcarbonyloxyalkyl, arylcarbonylthio, alkoxycarbonyloxyalkyl, alkylaminocarbonyloxyalkyl, alkoxycarbonylthioalkyl, and alkylaminocarbonylthioalkyl; and

wherein R.sup.3 is selected from cycloalkyl, cycloalkenyl, aryl and pyridyl; wherein R.sup.3 is optionally substituted at a substitutable position with one or more radicals independently selected from alkyl, cyano, carboxyl, alkoxycarbonyl, haloalkyl, hydroxyl, hydroxyalkyl, haloalkoxy, amino, alkylamino, arylamino, aminoalkyl, nitro, alkoxyalkyl, alkylsulfinyl, aminosulfonyl, halo, alkoxy and alkylthio; provided R.sup.1 is selected from pyridylmethoxy, pyridylmethylthio, pyridyl, pyridylmethyl, pyridylmethylamino and N-alkyl-N-pyridylmethylamino, when R.sup.3 is selected from cycloalkyl, cycloalkenyl and aryl; or a pharmaceutically-acceptable salt thereof.

6. Compound of claim 5 wherein R.sup.1 is selected from hydroxyl, lower alkyl, carboxyl, lower carboxyalkyl, lower aminocarbonylalkyl, lower alkoxycarbonylalkyl, lower aralkyl wherein the aryl ring is optionally substituted with one or more radicals selected fluoro, chloro, bromo, iodo, methyl, and methoxy, lower alkoxyalkyl, lower aralkoxyalkyl, lower alkylthioalkyl, lower aralkylthioalkyl, lower alkylaminoalkyl, lower aryloxyalkyl, lower arylthioalkyl, lower haloalkyl, lower hydroxylalkyl, lower cycloalkyl, and lower cycloalkylalkyl; wherein R.sup.3 is selected from cycloalkyl, cycloalkenyl, aryl, and pyridyl; and wherein R.sup.3 is optionally substituted at a substitutable position with one or more radicals independently selected from lower alkylsulfinyl, aminosulfonyl, lower alkyl, cyano, carboxyl, lower alkoxycarbonyl, lower haloalkyl, hydroxyl, lower hydroxyalkyl, lower haloalkoxy, amino, lower alkylamino, lower arylamino, lower aminoalkyl, nitro, halo, lower alkoxy and lower alkylthio; or a pharmaceutically-acceptable salt thereof.

7. Compound of claim 6 wherein R.sup.1 is selected from hydroxyl, methyl, ethyl, propyl, isopropyl, butyl, tert-butyl, isobutyl, pentyl, neopentyl, hexyl, carboxyl, carboxypropyl, carboxymethyl, carboxyethyl, aminocarbonylmethyl, methoxycarbonylmethyl, methoxycarbonyl ethyl, methoxymethyl, benzoxymethyl, phenylethoxymethyl, methylthiomethyl, benzylthiomethyl, N-methylaminomethyl, N,N-dimethylaminomethyl, phenyloxymethyl, phenylthiomethyl, fluoromethyl, difluoromethyl, trifluoromethyl, chloromethyl, dichloromethyl, trichloromethyl, pentafluoroethyl, heptafluoropropyl, fluoromethyl, difluoroethyl, difluoropropyl, dichloroethyl, dichloropropyl, hydroxylmethyl, hydroxylpropyl, hydroxylethyl, cyclohexyl, cyclobutyl, cyclopentyl, cycloheptyl, cyclohexylmethyl, cyclohexylethyl, cyclobutylethyl, cyclopentylmethyl, cycloheptylpropyl, and lower aralkyl selected from phenylethyl and benzyl, wherein the phenyl ring is optionally substituted with one or more radicals selected from fluoro, chloro, bromo, iodo, methyl, and methoxy; and wherein R.sup.3 is selected from phenyl, naphthyl, biphenyl, cyclohexyl, cyclopentyl, cycloheptyl, 1-cyclohexenyl, 2-cyclohexenyl, 3-cyclohexenyl, 4-cyclohexenyl, 1-cyclopentenyl, and pyridyl; wherein R.sup.3 is optionally substituted at a substitutable position with one or more radicals independently selected from trifluoromethoxy, N-methylamino, N,N-dimethylamino, N-ethylamino, N,N-dipropylamino, N-butylamino, N-methyl-N-ethylamino, phenylamino, N-methyl-N-phenylamino, methylsulfinyl, ethylsulfinyl, methyl, ethyl, isopropyl, butyl, tert-butyl, isobutyl, pentyl, hexyl, cyano, carboxyl, methoxycarbonyl, fluoromethyl, difluoromethyl, trifluoromethyl, chloromethyl, dichloromethyl, trichloromethyl, pentafluoroethyl, heptafluoropropyl, fluoromethyl, difluoroethyl, difluoropropyl, dichloroethyl, dichloropropyl, hydroxyl, hydroxymethyl, amino, aminomethyl, nitro, fluoro, chloro, bromo, iodo, methoxy, ethoxy, propoxy, n-butoxy, pentoxy, hexyloxy, methylthio, aminosulfonyl, ethylthio, butylthio, and hexylthio; or a pharmaceutically-acceptable salt thereof.

8. Compound of claim 4 selected from compounds, and their pharmaceutically acceptable salts, of the group consisting of

4-[5-methyl-3-(3-pyridyl)isoxazol-4-yl]benzenesulfonamide; and

4-[5-methyl-3-(4-pyridyl)-isoxazol-4-yl]benzenesulfonamide.

9. A pharmaceutical composition comprising a therapeutically-effective amount of a compound, said compound selected from a family of compounds of Formula II ##STR34## wherein R.sup.1 is selected from alkyl, carboxyalkyl, alkoxycarbonyl, aminocarbonyl, aminocarbonylalkyl, alkoxycarbonylalkyl, carboxyl, alkoxy, haloalkoxy, aralkoxy, pyridylmethoxy, cycloalkylalkoxy, alkylthio, aralkylthio, pyridylmethylthio, cycloalkylalkylthio, alkoxyalkyl, aralkoxyalkyl, alkylthioalkyl, aralkylthioalkyl, alkylaminoalkyl, aryloxyalkyl, arylthioalkyl, hydroxyl, amino, hydroxyalkyl, haloalkyl, cycloalkyl, cycloalkylalkyl, pyridyl, pyridylmethyl, aralkyl wherein the aryl ring is optionally substituted with one or more radicals selected from halo, alkyl, alkoxy, haloalkyl and haloalkoxy, halo, alkylamino, aralkylamino, N-alkyl-N-aralkylamino, pyridylmethylamino, N-alkyl-N-pyridylmethylamino, N-alkyl-N-cycloalkylalkylamino, arylcarbonyloxyalkyl, arylcarbonylthio, alkoxycarbonyloxyalkyl, alkylaminocarbonyloxyalkyl, alkoxycarbonylthioalkyl, and alkylaminocarbonylthioalkyl;

wherein R.sup.3 is selected from cycloalkyl, cycloalkenyl, aryl and pyridyl; wherein R.sup.3 is optionally substituted at a substitutable position with one or more radicals independently selected from alkyl, cyano, carboxyl, alkoxycarbonyl, haloalkyl, hydroxyl, hydroxyalkyl, haloalkoxy, amino, alkylamino, arylamino, aminoalkyl, nitro, alkoxyalkyl, alkylsulfinyl, alkylsulfonyl, aminosulfonyl, halo, alkoxy and alkylthio; and

wherein R.sup.4 is selected from alkyl, hydroxyl, and amino;

provided R.sup.1 is selected from pyridylmethoxy, pyridylmethylthio, pyridyl, pyridylmethyl, pyridylmethylamino and N-alkyl-N-pyridylmethylamino, when R.sup.3 is selected from cycloalkyl, cycloalkenyl and aryl;

or a pharmaceutically-acceptable salt thereof.

10. The pharmaceutical composition of claim 9 wherein R.sup.1 is selected from hydroxyl, amino, lower alkyl, lower carboxyalkyl, lower alkoxycarbonyl, aminocarbonyl, carboxyl, lower aminocarbonylalkyl, lower alkoxycarbonylalkyl, lower alkoxy, lower haloalkoxy, lower aralkoxy, pyridylmethoxy, lower cycloalkylalkoxy, lower alkylthio, lower aralkylthio, pyridylmethylthio, lower cycloalkylalkylthio, lower alkoxyalkyl, lower aralkoxyalkyl, lower alkylthioalkyl, lower aralkylthioalkyl, lower alkylaminoalkyl, lower aryloxyalkyl, lower arylthioalkyl, lower hydroxyalkyl, lower haloalkyl, lower cycloalkyl, lower cycloalkylalkyl, pyridyl, pyridylmethyl, lower aralkyl wherein the aryl ring is optionally substituted with one or more radicals selected from fluoro, chloro, bromo, iodo, methyl, and methoxy, halo, lower alkylamino, lower aralkylamino, lower N-alkyl-N-aralkylamino, pyridylmethylamino and N-lower alkyl-N-pyridylmethylamino, lower N-alkyl-N-cycloalkylalkylamino, lower arylcarbonyloxyalkyl, lower alkoxycarbonyloxyalkyl, lower alkylaminocarbonyloxyalkyl, lower alkoxycarbonylthioalkyl, and lower alkylaminocarbonylthioalkyl; wherein R.sup.3 is selected from cycloalkyl, cycloalkenyl, aryl, and pyridyl; wherein R.sup.3 is optionally substituted at a substitutable position with one or more radicals independently selected from lower alkylsulfinyl, lower alkyl, cyano, carboxyl, lower alkoxycarbonyl, lower haloalkyl, hydroxyl, lower hydroxyalkyl, lower haloalkoxy, amino, lower alkylamino, lower arylamino, lower aminoalkyl, nitro, halo, lower alkoxy, lower alkylsulfonyl, aminosulfonyl, and lower alkylthio; and wherein R.sup.4 is selected from lower alkyl, hydroxyl and amino; or a pharmaceutically-acceptable salt thereof.

11. The pharmaceutical composition of claim 10 wherein R.sup.1 is selected from hydroxyl, methyl, ethyl, propyl, isopropyl, butyl, tert-butyl, isobutyl, pentyl, neopentyl, hexyl, carboxyl, carboxypropyl, carboxymethyl, carboxyethyl, aminocarbonylmethyl, methoxycarbonylmethyl, methoxycarbonylethyl, methoxymethyl, benzoxymethyl, phenylethoxymethyl, methylthiomethyl, benzylthiomethyl, N-methylaminomethyl, N,N-dimethylaminomethyl, phenyloxymethyl, phenylthiomethyl, fluoromethyl, difluoromethyl, trifluoromethyl, chloromethyl, dichloromethyl, trichloromethyl, pentafluoroethyl, heptafluoropropyl, fluoromethyl, difluoroethyl, difluoropropyl, dichloroethyl, dichloropropyl, hydroxylmethyl, hydroxylpropyl, hydroxylethyl, cyclohexyl, cyclobutyl, cyclopentyl, cycloheptyl, cyclohexylmethyl, cyclohexylethyl, cyclobutylethyl, cyclopentylmethyl, cycloheptylpropyl, and lower aralkyl selected from benzyl and phenylethyl, wherein the phenyl ring is optionally substituted with one or more radicals selected from fluoro, chloro, bromo, iodo, methyl, and methoxy; wherein R.sup.3 is selected from phenyl, naphthyl, biphenyl, cyclohexyl, cyclopentyl, cycloheptyl, 1-cyclohexenyl, 2-cyclohexenyl, 3-cyclohexenyl, 4-cyclohexenyl, 1-cyclopentenyl, and pyridyl; wherein R.sup.3 is optionally substituted at a substitutable position with one or more radicals independently selected from trifluoromethoxy, N-methylamino, N,N-dimethylamino, N-ethylamino, N,N-dipropylamino, N-butylamino, N-methyl-N-ethylamino, phenylamino, N-methyl-N-phenylamino, methylsulfinyl, ethylsulfinyl, methyl, ethyl, isopropyl, butyl, tert-butyl, isobutyl, pentyl, hexyl, cyano, carboxyl, methoxycarbonyl, fluoromethyl, difluoromethyl, trifluoromethyl, chloromethyl, dichloromethyl, trichloromethyl, pentafluoroethyl, heptafluoropropyl, fluoromethyl, difluoroethyl, difluoropropyl, dichloroethyl, dichloropropyl, hydroxyl, hydroxymethyl, amino, nitro, fluoro, chloro, bromo, iodo, methoxy, ethoxy, propoxy, n-butoxy, pentoxy, hexyloxy, aminosulfonyl, methylthio, ethylthio, butylthio, and hexylthio; and wherein R.sup.4 is selected from methyl, hydroxyl and amino; or a pharmaceutically-acceptable salt thereof.

12. A pharmaceutical composition comprising a therapeutically-effective amount of a compound, said compound selected from a family of compounds of Formula III ##STR35## wherein R.sup.1 is selected from hydroxyl, alkyl, carboxyalkyl, aminocarbonylalkyl, alkoxycarbonylalkyl, carboxyl, alkoxy, haloalkoxy, aralkoxy, pyridylmethoxy, cycloalkylalkoxy, alkylthio, aralkylthio, pyridylmethylthio, cycloalkylalkylthio, alkoxyalkyl, aralkoxyalkyl, alkylthioalkyl, aralkylthioalkyl, alkylaminoalkyl, aryloxyalkyl, arylthioalkyl, hydroxyalkyl, haloalkyl, cycloalkyl, cycloalkylalkyl, pyridyl, pyridylmethyl, aralkyl wherein the aryl ring is optionally substituted with one or more radicals selected from halo, alkyl, alkoxy, haloalkyl and haloalkoxy, halo, alkylamino, aralkylamino, N-alkyl-N-aralkylamino, N-pyridylmethylamino, N-alkyl-N-pyridylmethylamino, N-alkyl-N-cycloalkylalkylamino, arylcarbonyloxyalkyl, arylcarbonylthio, alkoxycarbonyloxyalkyl, alkylaminocarbonyloxyalkyl, alkoxycarbonylthioalkyl, and alkylaminocarbonylthioalkyl; and

wherein R.sup.3 is selected from cycloalkyl, cycloalkenyl, aryl and pyridyl; wherein R.sup.3 is optionally substituted at a substitutable position with one or more radicals independently selected from alkyl, cyano, carboxyl, alkoxycarbonyl, haloalkyl, hydroxyl, hydroxyalkyl, haloalkoxy, amino, alkylamino, arylamino, aminoalkyl, nitro, alkoxyalkyl, alkylsulfinyl, aminosulfonyl, halo, alkoxy and alkylthio; provided R.sup.1 is selected from pyridylmethoxy, pyridylmethylthio, pyridyl, pyridylmethyl, pyridylmethylamino and N-alkyl-N-pyridylmethylamino, when R.sup.3 is selected from cycloalkyl, cycloalkenyl and aryl; or a pharmaceutically-acceptable salt thereof.

13. The pharmaceutical composition of claim 11 wherein said compound is selected from compounds, and their pharmaceutically-acceptable salts, of the group consisting of

4-[5-methyl-3-(3-pyridyl)isoxazol-4-yl]benzenesulfonamide; and

4-[5-methyl-3-(4-pyridyl)-isoxazol-4-yl]benzenesulfonamide.

14. A method of treating inflammation or an inflammation-associated disorder in a subject, said method comprising administering to the subject having or susceptible to said inflammation or inflammation-associated disorder, a therapeutically-effective amount of a compound of Formula II ##STR36## wherein R.sup.1 is selected from alkyl, carboxyalkyl, alkoxycarbonyl, aminocarbonyl, aminocarbonylalkyl, alkoxycarbonylalkyl, carboxyl, alkoxy, haloalkoxy, aralkoxy, pyridylmethoxy, cycloalkylalkoxy, alkylthio, aralkylthio, pyridylmethylthio, cycloalkylalkylthio, alkoxyalkyl, aralkoxyalkyl, alkylthioalkyl, aralkylthioalkyl, alkylaminoalkyl, aryloxyalkyl, arylthioalkyl, hydroxyl, amino, hydroxyalkyl, haloalkyl, cycloalkyl, cycloalkylalkyl, pyridyl, pyridylmethyl, aralkyl wherein the aryl ring is optionally substituted with one or more radicals selected from halo, alkyl, alkoxy, haloalkyl and haloalkoxy, halo, alkylamino, aralkylamino, N-alkyl-N-aralkylamino, pyridylmethylamino, N-alkyl-N-pyridylmethylamino, N-alkyl-N-cycloalkylalkylamino, arylcarbonyloxyalkyl, arylcarbonylthio, alkoxycarbonyloxyalkyl, alkylaminocarbonyloxyalkyl, alkoxycarbonylthioalkyl, and alkylaminocarbonylthioalkyl;

wherein R.sup.3 is selected from cycloalkyl, cycloalkenyl, aryl and pyridyl; wherein R.sup.3 is optionally substituted at a substitutable position with one or more radicals independently selected from alkyl, cyano, carboxyl, alkoxycarbonyl, haloalkyl, hydroxyl, hydroxyalkyl, haloalkoxy, amino, alkylamino, arylamino, aminoalkyl, nitro, alkoxyalkyl, alkylsulfinyl, alkylsulfonyl, aminosulfonyl, halo, alkoxy and alkylthio; and

wherein R.sup.4 is selected from alkyl, hydroxyl, and amino;

provided R.sup.1 is selected from pyridylmethoxy, pyridylmethylthio, pyridyl, pyridylmethyl, pyridylmethylamino and N-alkyl-N-pyridylmethylamino, when R.sup.3 is selected from cycloalkyl, cycloalkenyl and aryl;

or a pharmaceutically-acceptable salt thereof.

15. The method of claim 14 wherein R.sup.1 is selected from hydroxyl, amino, lower alkyl, lower carboxyalkyl, lower alkoxycarbonyl, aminocarbonyl, carboxyl, lower aminocarbonylalkyl, lower alkoxycarbonylalkyl, lower alkoxy, lower haloalkoxy, lower aralkoxy, pyridylmethoxy, lower cycloalkylalkoxy, lower alkylthio, lower aralkylthio, pyridylmethylthio, lower cycloalkylalkylthio, lower alkoxyalkyl, lower aralkoxyalkyl, lower alkylthioalkyl, lower aralkylthioalkyl, lower alkylaminoalkyl, lower aryloxyalkyl, lower arylthioalkyl, lower hydroxyalkyl, lower haloalkyl, lower cycloalkyl, lower cycloalkylalkyl, pyridyl, pyridylmethyl, lower aralkyl wherein the aryl ring is optionally substituted with one or more radicals selected from fluoro, chloro, bromo, iodo, methyl, and methoxy, halo, lower alkylamino, lower aralkylamino, lower N-alkyl-N-aralkylamino, pyridylmethylamino and N-lower alkyl-N-pyridylmethylamino, lower N-alkyl-N-cycloalkylalkylamino, lower arylcarbonyloxyalkyl, lower alkoxycarbonyloxyalkyl, lower alkylaminocarbonyloxyalkyl, lower alkoxycarbonylthioalkyl, and lower alkylaminocarbonylthioalkyl; wherein R.sup.3 is selected from cycloalkyl, cycloalkenyl, aryl, and pyridyl; wherein R.sup.3 is optionally substituted at a substitutable position with one or more radicals independently selected from lower alkylsulfinyl, lower alkyl, cyano, carboxyl, lower alkoxycarbonyl, lower haloalkyl, hydroxyl, lower hydroxyalkyl, lower haloalkoxy, amino, lower alkylamino, lower arylamino, lower aminoalkyl, nitro, halo, lower alkoxy, lower alkylsulfonyl, aminosulfonyl, and lower alkylthio; and wherein R.sup.4 is selected from lower alkyl, hydroxyl and amino; or a pharmaceutically-acceptable salt thereof.

16. The method of claim 15 wherein R.sup.1 is selected from hydroxyl, methyl, ethyl, propyl, isopropyl, butyl, tert-butyl, isobutyl, pentyl, neopentyl, hexyl, carboxyl, carboxypropyl, carboxymethyl, carboxyethyl, aminocarbonylmethyl, methoxycarbonylmethyl, methoxycarbonylethyl, methoxymethyl, benzoxymethyl, phenylethoxymethyl, methylthiomethyl, benzylthiomethyl, N-methylaminomethyl, N,N-dimethylaminomethyl, phenyloxymethyl, phenylthiomethyl, fluoromethyl, difluoromethyl, trifluoromethyl, chloromethyl, dichloromethyl, trichloromethyl, pentafluoroethyl, heptafluoropropyl, fluoromethyl, difluoroethyl, difluoropropyl, dichloroethyl, dichloropropyl, hydroxylmethyl, hydroxylpropyl, hydroxylethyl, cyclohexyl, cyclobutyl, cyclopentyl, cycloheptyl, cyclohexylmethyl, cyclohexylethyl, cyclobutylethyl, cyclopentylmethyl, cycloheptylpropyl, and lower aralkyl selected from benzyl and phenylethyl, wherein the phenyl ring is optionally substituted with one or more radicals selected from fluoro, chloro, bromo, iodo, methyl, and methoxy; wherein R.sup.3 is selected from phenyl, naphthyl, biphenyl, cyclohexyl, cyclopentyl, cycloheptyl, 1-cyclohexenyl, 2-cyclohexenyl, 3-cyclohexenyl, 4-cyclohexenyl, 1-cyclopentenyl, and pyridyl; wherein R.sup.3 is optionally substituted at a substitutable position with one or more radicals independently selected from trifluoromethoxy, N-methylamino, N,N-dimethylamino, N-ethylamino, N,N-dipropylamino, N-butylamino, N-methyl-N-ethylamino, phenylamino, N-methyl-N-phenylamino, methylsulfinyl, ethylsulfinyl, methyl, ethyl, isopropyl, butyl, tert-butyl, isobutyl, pentyl, hexyl, cyano, carboxyl, methoxycarbonyl, fluoromethyl, difluoromethyl, trifluoromethyl, chloromethyl, dichloromethyl, trichloromethyl, pentafluoroethyl, heptafluoropropyl, fluoromethyl, difluoroethyl, difluoropropyl, dichloroethyl, dichloropropyl, hydroxyl, hydroxymethyl, amino, nitro, fluoro, chloro, bromo, iodo, methoxy, ethoxy, propoxy, n-butoxy, pentoxy, hexyloxy, aminosulfonyl, methylthio, ethylthio, butylthio, and hexylthio; and wherein R.sup.4 is selected from methyl, hydroxyl and amino; or a pharmaceutically-acceptable salt thereof.

17. The method of claim 14 or use in treatment of inflammation.

18. The method of claim 14 for use in treatment of an inflammation-associated disorder.

19. The method of claim 18 wherein the inflammation-associated disorder is arthritis.

20. The method of claim 18 wherein the inflammation-associated disorder is pain.

21. The method of claim 18 wherein the inflammation-associated disorder is fever.

22. The method of claim 16 wherein said compound is selected from compounds, and their pharmaceutically-acceptable salts, of the group consisting of

4-[5-methyl-3-(3-pyridyl)isoxazol-4-yl]benzenesulfonamide; and

4-[5-methyl-3-(4-pyridyl)-isoxazol-4-yl]benzenesulfonamide.

23. A method of treating inflammation o an inflammation-associated disorder in a subject, said method comprising administering to the subject having or susceptible to said inflammation or inflammation-associated disorder, a therapeutically-effective amount of a compound of Formula III ##STR37## wherein R.sup.1 is selected from hydroxyl, alkyl, carboxyalkyl, aminocarbonylalkyl, alkoxycarbonylalkyl, carboxyl, alkoxy, haloalkoxy, aralkoxy, pyridylmethoxy, cycloalkylalkoxy, alkylthio, aralkylthio, pyridylmethylthio, cycloalkylalkylthio, alkoxyalkyl, aralkoxyalkyl, alkylthioalkyl, aralkylthioalkyl, alkylaminoalkyl, aryloxyalkyl, arylthioalkyl, hydroxyalkyl, haloalkyl, cycloalkyl, cycloalkylalkyl, pyridyl, pyridylmethyl, aralkyl wherein the aryl ring is optionally substituted with one or more radicals selected from halo, alkyl, alkoxy, haloalkyl and haloalkoxy, halo, alkylamino, aralkylamino, N-alkyl-N-aralkylamino, N-pyridylmethylamino, N-alkyl-N-pyridylmethylamino, N-alkyl-N-cycloalkylalkylamino, arylcarbonyloxyalkyl, arylcarbonylthio, alkoxycarbonyloxyalkyl, alkylaminocarbonyloxyalkyl, alkoxycarbonylthioalkyl, and alkylaminocarbonylthioalkyl; and

wherein R.sup.3 is selected from cycloalkyl, cycloalkenyl, aryl and pyridyl; wherein R.sup.3 is optionally substituted at a substitutable position with one or more radicals independently selected from alkyl, cyano, carboxyl, alkoxycarbonyl, haloalkyl, hydroxyl, hydroxyalkyl, haloalkoxy, amino, alkylamino, arylamino, aminoalkyl, nitro, alkoxyalkyl, alkylsulfinyl, aminosulfonyl, halo, alkoxy and alkylthio; provided R.sup.1 is selected from pyridylmethoxy, pyridylmethylthio, pyridyl, pyridylmethyl, pyridylmethylamino and N-alkyl-N-pyridylmethylamino, when R.sup.3 is selected from cycloalkyl, cycloalkenyl and aryl; or a pharmaceutically-acceptable salt thereof.
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