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Claims for Patent: 6,743,798

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Claims for Patent: 6,743,798

Title: Substituted pyrazole derivatives condensed with six-membered heterocyclic rings
Abstract:The present invention relates to novel substituted pyrazole derivatives of the general formula (I) ##STR1## in which R.sup.1, R.sup.2, R.sup.3 and A are each as defined, and to processes for their preparation and to their use as medicaments, in particular as medicaments for the treatment of cardiovascular disorders.
Inventor(s): Straub; Alexander (Wuppertal, DE), Feurer; Achim (Odenthal, DE), Alonso-Alija; Cristina (Haan, DE), Stasch; Johannes-Peter (Solingen, DE), Perzborn; Elisabeth (Wuppertal, DE), Hutter; Joachim (Wuppertal, DE), Dembowsky; Klaus (Boston, MA), Stahl; Elke (Bergisch Gladbach, DE)
Assignee: Bayer Aktiengesellschaft (Leverkusen, DE)
Application Number:09/744,830
Patent Claims: 1. A compound of the formula (I) ##STR143##

in which R.sup.1 represents pyrimidinyl group, which is optionally substituted up to 2 times by identical or different radicals from the group (i) consisting of hydrogen, amino, azido, formyl, mercaptyl, carboxyl, hydroxyl, straight-chain or branched acyl, alkoxy, alkylthio or alkoxycarbonyl having in each case up to 6 carbon atoms, nitro, cyano, halogen, phenyl or straight-chain or branched alkyl having up to 6 carbon atoms which for its part may be substituted by hydroxyl, amino, azido, carboxyl, straight-chain or branched acyl, alkoxy, alkoxycarbonyl or acylamino having in each case up to 5 carbon atoms or by a radical of the formula --OR.sup.4 in which R.sup.4 represents straight-chain or branched acyl having up to 5 carbon atoms and/or is substituted by a radical of the formula ##STR144## --S(O).sub.c --NR.sup.6 R.sup.7 in which a, b and b' are identical or different and each represents a number 0, 1, 2 or 3, R.sup.5 is hydrogen or straight-chain or branched alkyl having up to 4 carbon atoms, c is a number 1 or 2 and R.sup.6 and R.sup.7 are identical or different and each represents hydrogen or straight-chain or branched alkyl having up to 10 carbon atoms which is optionally substituted by cycloalkyl having 3 to 8 carbon atoms or by aryl having 6 to 10 carbon atoms which for its part may be substituted by halogen, or represents aryl having 6 to 10 carbon atoms which is optionally substituted by halogen, or represents cycloalkyl having 3 to 7 carbon atoms, or R.sup.6 and R.sup.7 together with the nitrogen atom form a 5- to 7-membered saturated heterocycle which may optionally contain a further oxygen atom or a radical --NR.sup.8 in which R.sup.8 represents hydrogen, straight-chain or branched alkyl having up to 4 carbon atoms or a radical of the formula ##STR145## or benzyl or phenyl where the ring systems are optionally substituted by halogen, and which is substituted by at least one radical selected from the group (ii) consisting of imidazolyl, imidazolinyl, imidazolidinyl, morpholinyl, piperidinyl, piperazinyl, pyrrolidinyl, triazolyl, pyrrolyl, thiomorpholinyl, S-oxothiomorpholinyl, S,S-dioxothiomorpholinyl, thiazolyl, and thiadiazolyl, and which is optionally mono- or polysubstituted by a 5- or 6-membered ring which contains two oxygen atoms as ring members and forms a bicyclic unit or a spiro unit with the ring to which it is attached, and/or by hydroxyl, cyano, straight-chain or branched alkyl, acyl or alkoxycarbonyl having in each case up to 6 carbon atoms, where alkyl, acyl and alkoxycarbonyl may be substituted by hydroxyl, amino, halogen, carboxyl, straight-chain or branched acyl, alkoxy, alkoxycarbonyl or acylamino having in each case up to 5 carbon atoms, and an aryl ring having 6 to 10 carbon atoms which is substituted by straight-chain or branched alkyl having up to 4 carbon atoms, and (C.sub.2 -C.sub.10)alkenyl, (C.sub.2 -C.sub.10)alkinyl, (C.sub.7 -C.sub.20)alkyl, which is optionally substituted by aryl, halogen, cyano, dialkylamino, cycloalkyl, alkylamine, hydroxyl, amino, azido, carboxyl, straight-chain or branched acyl, alkoxy, alkoxycarbonyl or acylamino having in each case up to 5 carbon atoms or by a radical of the formula --OR.sup.4 in which R.sup.4 represents straight-chain or branched acyl having up to 5 carbon atoms and (C.sub.1 -C.sub.6)alkyl which is substituted 1- to 3 times by aryl, halogen(s), cyano, dialkylamino, alkylamino or cycloalkyl and acyl, which is substituted by halogen, acyloxy, or arylthio, and --NO or radicals of the formulae --SO.sub.3 H and --S(O).sub.d R.sup.9, in which d represents a number 1 or 2, R.sup.9 represents straight-chain or branched alkyl having 1 to 10 carbon atoms, cycloalkyl having 3 to 8 carbon atoms, aryl having 6 to 10 carbon atoms or thienyl, where the ring systems may optionally be substituted by halogen or by straight-chain or branched alkyl or alkoxy having in each case up to 4 carbon atoms, and a radical of the formula PO(OR.sup.10)(OR.sup.11) in which R.sup.10 and R.sup.11 are identical or different and each represents hydrogen, straight-chain or branched alkyl having up to 8 carbon atoms or cycloalkyl having 3 to 8 carbon atoms, aryl having 6 to 10 carbon atoms or benzyl, and oxycycloalkyl having 3 to 8 ring members or radicals of the formulae --CON.dbd.C(NH.sub.2).sub.2, --C.dbd.NH(NH.sub.2), --NH--C(.dbd.NH)NH.sub.2 or (CO).sub.e NR.sup.12 R.sup.13 in which e represents a number 0 or 1, R.sup.12 and R.sup.13 are identical or different and each represents hydrogen, straight-chain or branched alkyl having up to 14 carbon atoms or cycloalkyl having 3 to 14 carbon atoms, or aryl having 6 to 10 carbon atoms, where the abovementioned radicals may optionally be substituted by aryl having 6 to 10 carbon atoms, cycloalkyl having 3 to 7 carbon atoms, hydroxyl, amino or straight-chain or branched alkoxy, acyl or alkoxycarbonyl having in each case up to 6 carbon atoms, and, in the case that e=1, R.sup.12 and R.sup.13, together with the nitrogen atom to which they are attached, may also form a morpholinyl, pyrrolidinyl, or piperidinyl group, which may optionally be substituted up to 3 times by hydroxyl, alkoxy or alkyl having in each case up to 8 carbon atoms, and, in the case that e=0, R.sup.12 and R.sup.13 may also represent straight-chain, branched or cyclic acyl having up to 14 carbon atoms, hydroxyalkyl, straight-chain or branched alkoxycarbonyl or acyloxyalkyl having in each case up to 6 carbon atoms, or a radical of the formula --SO.sub.2 R.sup.14 in which R.sup.14 represents straight-chain or branched alkyl having up to 4 carbon atoms, and/or R.sup.12 and R.sup.13 also represent radicals of the formulae ##STR146## in which R.sup.15 -R.sup.16 and R.sup.18 -R.sup.31 are identical or different and each represents hydrogen or straight-chain or branched alkyl having up to 4 carbon atoms, g represents a number 0, 1 or 2, and R.sup.17 represents phenyl, straight-chain or branched alkyl having up to 6 carbon atoms or cycloalkyl having 3 to 8 carbon atoms, with the proviso that, if e=0, R.sup.12 and R.sup.13 do not simultaneously represent hydrogen, or R.sup.1 represents a purine radical which may optionally be substituted up to three times by halogen, azido, cyano, hydroxyl, amino, monoalkylamino having up to 5 carbon atoms, dialkylamino having in each case up to 5 carbon atoms, alkyl having up to 5 carbon atoms and/or alkoxy having up to 5 carbon atoms, R.sup.2 and R.sup.3, together with the double bond, form a fused pyridyl ring, which is optionally substituted up to three times by identical or different substituents from the group consisting of formyl, carboxyl, hydroxyl, mercaptyl, straight-chain or branched acyl, alkylthio or alkoxycarbonyl having in each case up to 6 carbon atoms, nitro, cyano, halogen or straight-chain or branched alkyl or alkoxy having in each case up to 6 carbon atoms which for its part may be substituted by hydroxyl, amino, carboxyl, straight-chain or branched acyl, alkoxy or alkoxycarbonyl having in each case up to 5 carbon atoms, and/or which is optionally substituted by a group of the formula --NR.sup.32 R.sup.33 in which R.sup.32 and R.sup.33 are identical or different and each represents hydrogen or straight-chain or branched alkyl having up to 6 carbon atoms, or R.sup.32 represents hydrogen and R.sup.33 represents acyl, and/or which is optionally substituted by phenyl which for its part may be substituted up to 2 times by identical or different substituents from the group consisting of halogen and straight-chain or branched alkyl or alkoxy having in each case up to 6 carbon atoms, and/or which is optionally substituted by a group of the formula --N.dbd.CH--NR.sup.34 R.sup.35 in which R.sup.34 and R.sup.35 are identical or different and each represents hydrogen, phenyl or straight-chain or branched alkyl having up to 6 carbon atoms, A represents thienyl tetrahydropyranyl, tetrahydrofuranyl, phenyl, morpholinyl, pyrimidyl, pyrazinyl, pyridazinyl or pyridyl which are optionally substituted up to 3 times by identical or different substituents from the group consisting of amino, mercaptyl, hydroxyl, formyl, carboxyl, straight-chain or branched acyl, alkylthio, alkyloxyacyl, alkoxy or alkoxycarbonyl having in each case up to 6 carbon atoms, nitro, cyano, trifluoromethyl, azido, halogen, phenyl or straight-chain or branched alkyl having up to 6 carbon atoms which for its part may be substituted by hydroxyl, carboxyl, straight-chain or branched acyl, alkoxy or alkoxycarbonyl having in each case up to 5 carbon atoms, and/or is substituted by a group of the formula --(CO).sub.h --NR.sup.36 R.sup.37 in which h represents a number 0 or 1, R.sup.36 and R.sup.37 are identical or different and each represents hydrogen, phenyl, benzyl or straight-chain or branched alkyl or acyl having in each case up to 5 carbon atoms,

or a stereoisomeric form or salt thereof.

2. The compound of formula (I) according to claim 1

in which R.sup.1 represents a pyrimidinyl group, which is optionally substituted up to 2 times by identical or different radicals from the group (i) consisting of hydrogen, amino, azido, formyl, mercaptyl, carboxyl, hydroxyl, straight-chain or branched acyl, alkoxy, alkylthio or alkoxycarbonyl having in each case up to 6 carbon atoms, nitro, cyano, halogen, phenyl or straight-chain or branched alkyl having up to 6 carbon atoms which for its part may be substituted by hydroxyl, amino, azido, carboxyl, straight-chain or branched acyl, alkoxy, alkoxycarbonyl or acylamino having in each case up to 5 carbon atoms or by a radical of the formula --OR.sup.4 in which R.sup.4 represents straight-chain or branched acyl having up to 5 carbon atoms and/or is substituted by a radical of the formula ##STR147## in which a, b and b' are identical or different and each represents a number 0, 1, 2 or 3, R.sup.5 is hydrogen or straight-chain or branched alkyl having up to 4 carbon atoms, and which is substituted by at least one radical selected from the group (ii) consisting of imidazolyl, imidazolinyl, imidazolidinyl, morpholinyl, piperidinyl, piperazinyl, pyrrolidinyl, triazolyl, pyrrolyl, thiomorpholinyl, S-oxothiomorpholinyl, S,S-dioxothiomorpholinyl, thiazolyl, and thiadiazolyl and which is optionally mono- or polysubstituted by a 5- or 6-membered ring which contains two oxygen atoms as ring members and forms a bicyclic unit or a spiro unit with the ring to which it is attached, and/or by hydroxyl, cyano, straight-chain or branched alkyl, acyl or alkoxycarbonyl having in each case up to 6 carbon atoms, where alkyl, acyl and alkoxycarbonyl may be substituted by hydroxyl, amino, halogen, carboxyl, straight-chain or branched acyl, alkoxy, alkoxycarbonyl or acylamino having in each case up to 5 carbon atoms, and an aryl ring having 6 to 10 carbon atoms which is substituted by straight-chain or branched alkyl having up to 4 carbon atoms, and (C.sub.2 -C10)alkenyl, (C.sub.2 -C.sub.10)alkynyl, (C.sub.7 -C.sub.20)alkyl, which is optionally substituted by aryl, halogen, cyano, dialkylamino, cycloalkyl, alkylamine, hydroxyl, amino, azido, carboxyl, straight-chain or branched acyl, alkoxy, alkoxycarbonyl or acylamino having in each case up to 5 carbon atoms or by a radical of the formula --OR.sup.4 in which R.sup.4 represents straight-chain or branched acyl having up to 5 carbon atoms and (C.sub.1 -C.sub.6)alkyl which is substituted 1- to 3 times by aryl, halogen(s), cyano, dialkylamino, alkylamino or cycloalkyl and acyl, which is substituted by halogen, or by acyloxy, or arylthio, and --NO or radicals of the formulae --SO.sub.3 H and --S(O).sub.d R.sup.9, in which d represents a number 1 or 2, R.sup.9 represents straight-chain or branched alkyl having 1 to 10 carbon atoms, cycloalkyl having 3 to 8 carbon atoms, aryl having 6 to 10 carbon atoms or thienyl, where the ring systems may optionally be substituted by halogen or by straight-chain or branched alkyl or alkoxy having in each case up to 4 carbon atoms, and a radical of the formula PO(OR.sup.10)(OR.sup.11) in which R.sup.10 and R.sup.11 are identical or different and each represents hydrogen, straight-chain or branched alkyl having up to 8 carbon atoms or cycloalkyl having 3 to 8 carbon atoms, aryl having 6 to 10 carbon atoms or benzyl, and oxycycloalkyl having 3 to 8 ring members or radicals of the formulae --CON.dbd.C(NH.sub.2).sub.2, --C.dbd.NH(NH.sub.2), --NH--C(.dbd.NH)NH.sub.2 or (CO).sub.e NR.sup.12 R.sup.13 in which e represents a number 0 or 1, R.sup.12 and R.sup.13 are identical or different and each represents hydrogen, straight-chain or branched alkyl having up to 14 carbon atoms or cycloalkyl having 3 to 14 carbon atoms, or aryl having 6 to 10 carbon atoms, where the abovementioned radicals may optionally be substituted by aryl having 6 to carbon atoms, cycloalkyl having 3 to 7 carbon atoms, hydroxyl, amino or straight-chain or branched alkoxy, acyl or alkoxycarbonyl having in each case up to 6 carbon atoms, and, in the case that e=1, R.sup.12 and R.sup.13, together with the nitrogen atom to which they are attached, may also form a piperidinyl, morpholinyl, or pyrrolidinyl group, which may optionally substituted up to 3 times by hydroxyl, alkoxy or alkyl having in each case up to 8 carbon atoms, and, in the case that e=0, R.sup.12 and R.sup.13 may also represent straight-chain, branched or cyclic acyl having up to 14 carbon atoms, hydroxyalkyl, straight-chain or branched alkoxycarbonyl or acyloxyalkyl having in each case up to 6 carbon atoms, or a radical of the formula --SO.sub.2 R.sup.14 in which R.sup.14 represents straight-chain or branched alkyl having up to 4 carbon atoms, and/or R.sup.12 and R.sup.13 also represent radicals of the formulae ##STR148## in which R.sup.15 -R.sup.16 and R.sup.18 -R.sup.31 are identical or different and each represents hydrogen or straight-chain or branched alkyl having up to 4 carbon atoms, g represents a number 0, 1 or 2, and R.sup.17 represents phenyl, straight-chain or branched alkyl having up to 6 carbon atoms or cycloalkyl having 3 to 8 carbon atoms, with the proviso that, if e=0, R.sup.12 and R.sup.13 do not simultaneously represent hydrogen, or R.sup.1 represents a purine radical which may optionally be substituted up to three times by halogen, azido, cyano, hydroxyl, amino, monoalkylamino having up to 5 carbon atoms, dialkylamino having in each case up to 5 carbon atoms, alkyl having up to 5 carbon atoms and/or alkoxy having up to 5 carbon atoms, R.sup.2 and R.sup.3, together with the double bond, form a fused pyridyl ring, which is optionally substituted up to 2 times by identical or different substituents from the group consisting of formyl, carboxyl, hydroxyl, mercaptyl, straight-chain or branched acyl, alkylthio or alkoxycarbonyl having in each case up to 5 carbon atoms, nitro, cyano, azido, fluorine, chlorine, bromine or straight-chain or branched alkyl or alkoxy having in each case up to 5 carbon atoms which for its part may be substituted by hydroxyl, amino, carboxyl, straight-chain or branched acyl, alkoxy or alkoxycarbonyl having in each case up to 4 carbon atoms, and/or the abovementioned fused pyridyl ring is optionally substituted by a group of the formula --NR.sup.32 R.sup.33 in which R.sup.32 and R.sup.33 are identical or different and represent hydrogen or straight-chain or branched alkyl having up to 4 carbon atoms or R.sup.32 represents hydrogen and R.sup.33 represents formyl and/or the abovementioned fused pyridyl ring is optionally substituted by phenyl which for its part may be substituted by fluorine, chlorine, bromine or by straight-chain or branched alkyl or alkoxy having in each case up to 4 carbon atoms, A represents thienyl, tetrahydropyranyl, tetrahydrofuranyl, phenyl, morpholinyl, pyrimidyl, pyrazinyl, pyridazinyl or pyridyl which are optionally substituted up to 2 times by identical or different substituents from the group consisting of hydroxyl, formyl, carboxyl, straight-chain or branched acyl, alkylthio, alkyloxyacyl, alkoxy or alkoxycarbonyl having in each case up to 4 carbon atoms, fluorine, chlorine and bromine,

or a stereoisomeric form or salt thereof.

3. The compound of formula (I) according to claim 1

in which R.sup.1 represents a pyrimidinyl group which is optionally substituted up to 2 times by identical or different radicals from the group (i) consisting of hydrogen, amino, hydroxyl, alkoxy or alkoxycarbonyl having in each case up to 3 carbon atoms, cyano or halogen, and which is substituted by at least one radical selected from the group (ii) consisting of imidazolyl, imidazolinyl, imidazolidinyl, morpholinyl, piperidinyl, piperazinyl, pyrrolidinyl, triazolyl, pyrrolyl and thiomorpholinyl and which is optionally mono- or polysubstituted by a 5-membered ring which contains two oxygen atoms as ring members and which forms, with the ring to which it is attached, a bicyclic unit or a spiro unit, and/or by hydroxyl, cyano, straight-chain or branched alkyl, acyl or alkoxycarbonyl having in each case up to 3 carbon atoms, where alkyl, acyl and alkoxycarbonyl may be substituted by hydroxyl, amino, halogen, carboxyl, straight-chain or branched acyl or alkoxy having in each case up to 3 carbon atoms, and a tolyl radical, and C.sub.7 -alkyl which is optionally substituted by cyano, and (C.sub.1 -C.sub.5)alkyl, which is 1- to 3-times substituted by halogen(s), cyano, or aryl, and --NO or radicals of the formula --S(O).sub.d R.sup.9, in which d represents a number 1 or 2, R.sup.9 represents straight-chain or branched alkyl having 1 to 4 carbon atoms, aryl having 6 carbon atoms or thienyl, and a radical of the formula PO(OR.sup.10)(OR.sup.11), in which R.sup.10 and R.sup.11 are identical or different and each represents straight-chain or branched alkyl having up to 3 carbon atoms, and radicals of the formulae --NH--C(.dbd.NH)NH.sub.2 and or (CO).sub.e NR.sup.12 R.sup.13 in which e represents a number 0 or 1, R.sup.12 and R.sup.13 are identical or different and each represents hydrogen, straight-chain or branched alkyl having up to 4 carbon atoms or cycloalkyl having 3 carbon atoms, where the abovementioned radicals may optionally be substituted by aryl having 6 carbon atoms, furyl, cycloalkyl having 3 carbon atoms, hydroxyl, straight-chain alkoxy having up to 2 carbon atoms, and, in the case that e=1, R.sup.12 and R .sup.13, together with the nitrogen atom to which they are attached, may also form a piperidinyl, morpholinyl, or pyrrolidinyl group which may optionally be substituted up to 2 times by hydroxyl or methyl, and, in the case that e=0, R.sup.12 and R.sup.13 may also represent straight-chain acyl having up to 14 carbon atoms, and/or R.sup.12 and R.sup.13 also represent a radical of the formula ##STR149## with the proviso that in the case that e=0, R.sup.12 and R.sup.13 do not simultaneously represent hydrogen, or R.sup.1 represents a purine radical which may optionally be substituted up to two times by halogen, azido, amino, monoalkylamino having up to 4 carbon atoms and/or methyl, R.sup.2 and R.sup.3 together with the double bond form a fused pyridyl ring, A represents phenyl or pyrimidyl, which are optionally substituted by fluorine, chlorine or bromine,

or a stereoisomeric form or salt thereof.

4. The compound according to claim 1,

where R.sup.1 represents a radical of the formula ##STR150## in which R' represents NH.sub.2, R" represents optionally substituted morpholinyl, piperidinyl, piperazinyl, pyrrolidinyl, triazolyl or thiomorpholinyl and R'" represents hydrogen or NH.sub.2.

5. Compounds according to claim 4 in which R" represents morpholinyl.

6. A process for preparing compounds of formula (I) of claim 1,

characterized in that in the case that R.sup.1 represents an optionally substituted pyrimidine radical, amidines of the formula (IX) ##STR151## in which A, R.sup.2 and R.sup.3 are each as defined above in claim 1,

are reacted with compounds of the formula (X), (Xa), (Xb) or (Xc) ##STR152##

in which R.sup.1' represents the optionally substituted cycloalkyl radical listed above under R.sup.1 ; Alk represents straight-chain or branched alkyl having up to 8 carbon atoms, and Z represents an NH.sub.2 group, a monoalkylamino group having up to 7 carbon atoms, a dialkylamino group having up to 7 carbon atoms, a piperidinyl or morpholinyl radical which is attached via the nitrogen, hydroxyl, alkoxy having up to 7 carbon atoms, acyloxy having up to 7 carbon atoms or aroyloxy having 6 to 10 carbon atoms, and, in the case of the groups --S(O).sub.c NR.sup.6 R.sup.7 and --S(O).sub.c' NR.sup.6' R.sup.7', starting from the unsubstituted compounds of the formula (1), reacted initially with thionyl chloride and, in a second step, with the appropriate amines and the substituents listed under X, Y, R.sup.1, R.sup.2, R.sup.3 and/or R.sup.4 are modified or introduced by acylation of free amino groups or hydroxyl groups, chlorination, catalytic, hydrogenation, reduction, oxidation, removal of protective groups and/or nucleophilic substitution.

7. A pharmaceutical composition comprising a compound of formula (I) according to claim 1 and a pharmaceutically acceptable carrier.

8. A method of treating the cardiovascular disease hypertension comprising administering to a mammal an effective amount of a compound according to claim 1.
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