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Details for Patent: 5,770,710

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Details for Patent: 5,770,710

Title: Antitumor and antibacterial substituted disulfide derivatives prepared from compounds possessing a methlytrithio group
Abstract:A process is described for producing substituted disulfide analogs of the family of antibacterial and antitumor agents known collectively as the LL-E33288 complex.
Inventor(s): McGahren; William James (Demarest, NJ), Sassiver; Martin Leon (Spring Valley, NY), Ellestad; George A. (Pearl River, NY)
Assignee: American Cyanamid Company (Madison, NJ)
Filing Date:Jun 05, 1995
Application Number:08/462,863
Claims:1. A process for producing a substituted disulfide of formula Q--Sp--SS--W from a compound of formula CH.sub.3 SSS--W and designated as LL-E33288.alpha..sub.1 -Br, .alpha..sub.1 -I, .alpha..sub.2 -Br, .alpha..sub.2 -I, .alpha..sub.3 -Br, .alpha..sub.3 -I, .alpha..sub.4 -Br, .beta..sub.1 -Br, .beta..sub.1 -I, .beta..sub.2 -Br, .beta..sub.2 -I, .gamma..sub.1 -Br, .gamma..sub.1 -I, .delta..sub.1 I, the iodo or bromo pseudoaglycones, their dihydro or N-acyl counterparts, BBM-1675, FR-900405, FR-900406, PD114759, PD 115028, CL-1577A, CL-1577B, CL-1577D, CL-1577E, CL-1724, or their N-acetyl counterparts, wherein ##STR16## R.sub.5 is CH.sub.3, C.sub.2 H.sub.5, or (CH.sub.3).sub.2 CH; R.sub.8 is OH and R.sub.9 is H, or R.sub.8 and R.sub.9 together is a carbonyl group; X is an iodine or bromine atom; R.sub.5 is a hydrogen or the group RCO, wherein R is hydrogen or a branched or unbranched alkyl (C.sub.1 -C.sub.10) or alkylene (C.sub.1 -C.sub.10) group, a C.sub.6 -C.sub.11 aryl group, or C.sub.6 -C.sub.11 aryl-alkyl (C.sub.1 -C.sub.5) group or 2- or 3-furyl, 2- or 3-thienyl, 2- or 3-(N-methylpyrrolyl), 2-, 3-, or 4-pyridyl, 2-, 4-, or 5-(N-methylimidazolyl), 2-, 4- or 5-oxazolyl, 2-, 4-, 5- or 6-pyrimidinyl, 2-, 3-, 4-, 5-, 6-, 7- or 8-quinolyl, or 1-, 3-, 4-, 5-, 6-, 7- or 8-isoquinolyl heterocycles wherein the aryl groups are optionally substituted by one or more hydroxy, amino, carboxy, halo, nitro, lower (C.sub.1 -C.sub.3) alkoxy, or lower (C.sub.1 -C.sub.5) thioalkoxy groups; Sp is straight or branched-chain divalent or trivalent (C.sub.1 -C.sub.18) radicals, divalent or trivalent C.sub.6 -C.sub.11 aryl or heteroaryl radicals, divalent or trivalent (C.sub.3 -C.sub.18) cycloalkyl radicals, divalent or trivalent aryl- or heteroaryl-alkyl (C.sub.4 -C.sub.18) radicals, divalent or trivalent cycloalkyl-alkyl (C.sub.4 -C.sub.18) radicals, or divalent or trivalent (C.sub.2 -C.sub.18) unsaturated alkyl radicals wherein heteroaryl is furyl, thienyl, N-methylpyrrolyl, pyridyl, N-methylimidazolyl, oxazolyl, pyrimidinyl, quinolyl, isoquinolyl, N-methylcarbazolyl, aminocourmarinyl, or phenazinyl; and wherein if Sp is a trivalent radical, it can be additionally substituted by amino, C.sub.1 -C.sub.10 alkylamino, C.sub.6 -C.sub.11 arylamino, heteroarylamino, carboxyl, lower alkoxy, hydroxy, thiol, or lower alkylthio groups; Q is hydrogen, halogen, amino, C.sub.1 -C.sub.10 alkylamino, C.sub.1 -C.sub.10 dialkylamino, piperidino, pyrrolidino, piperazine, carboxyl, carboxaldehyde, lower alkoxy, hydroxy, thiol, lower alkyldicarboxyl, --CONHNH.sub.2, --NHCONHNH.sub.2, --CSNHNH.sub.2, --NHCSNHNH.sub.2, or --ONH.sub.2 ; with the proviso that when Sp is ethylidine, Q cannot be hydrogen; which comprises reacting a methyl trisulfide antitumor antibiotic from those of the above with Q--Sp--SH, wherein Q and Sp are as hereinabove defined, in acetonitrile or a combination of acetonitrile and tetrahydrofuran or acetonitrile and dimethylformamide, at a temperature of between -20.degree. to about +40.degree. C., for a period of from one hour to six days.

2. A process according to claim 1 for producing a compound of formula CH.sub.3 SSW comprising reacting CH.sub.3 SSS--W with methyl mercaptan in acetonitrile at -30.degree. to 0.degree. C. for 1 to 48 hours.

3. A process according to claim 1 for producing a compound of formula CH.sub.3 CH.sub.2 SS--W comprising reacting CH.sub.3 SSS--W with ethyl mercaptan in acetonitrile at -20.degree. for 18 hours.

4. A process according to claim 1 for producing a compound of formula CH.sub.3 (CH.sub.2).sub.2 SS--W comprising reacting CH.sub.3 SSS--W with propyl mercaptan in acetonitrile at 25.degree. for three hours.

5. A process according to claim 1 for producing a compound of formula CH.sub.3 CH.sub.2 CH(CH.sub.3)SS--W comprising reacting CH.sub.3 SSS--W with 2-mercaptobutane in acetonitrile at 25.degree. for two hours.

6. A process according to claim 1 for producing a compound of formula (CH.sub.3).sub.3 CSS--W comprising reacting CH.sub.3 SSS--W with t-butylmercaptan in acetonitrile at about 25.degree. for 2 to 3 hours.

7. A process according to claim 1 for producing a compound of the formula HO.sub.2 C(CH.sub.2).sub.2 SS--W comprising reacting CH.sub.3 SSS--W with 3-mercaptopropionic acid in acetonitrile at about -20.degree. for about six days.

8. A process according to claim 1 for producing a compound of the formula ##STR17## comprising reacting CH.sub.3 SSS--W with 7-(2-mercaptoethyl-amino)-4-methyl coumarin in acetonitrile at -15.degree. to 0.degree. C. for one to 36 hours.

9. A process according to claim 1 for producing a compound of formula H.sub.2 NNHCO(CH.sub.2).sub.2 SS--W comprising reacting CH.sub.3 SSS--W with 3-mercaptopropionyl hydrazide in acetonitrile at -15.degree. to 0.degree. C. for one to two hours.

10. A process according to claim 1 for producing a compound of formula H.sub.2 NNHCOCH.sub.2 CH(CH.sub.3)SS--W comprising reacting CH.sub.3 SSS--W with 3-mercaptobutyryl hydrazide in acetonitrile at -15.degree. to 0.degree. C. for one to 10 hours.

11. A process according to claim 1 for producing a compound of formula H.sub.2 NNHCOCH.sub.2 C(CH.sub.3).sub.2 SS--W comprising reacting CH.sub.3 SSS--W with 3-mercaptoisovaleryl hydrazide in acetonitrile at 15.degree. to 25.degree. C. for about three hours.

12. A process according to claim 1 for producing a compound of formula ##STR18## comprising reacting CH.sub.3 SSS--W with 4-mercaptodihydrocinnamyl hydrazide in acetonitrile at -15.degree. to 25.degree. C. for about two to ten hours.

13. A process according to claim 1 for producing a compound of formula ##STR19## comprising reacting CH.sub.3 SSS--W with N-(((4-methylcoumarin-7-yl)amino)acetyl)cysteine hydrazide in a mixture of acetonitrile and dimethylformamide at 0.degree. C. for about three days.

14. The process according to claim 1, wherein the reaction of the methyl trisulfide antitumor antibiotic with an alkyl or aryl substituted mercaptan in acetonitrile or a combination of acetonitrile and tetrahydrofuran or acetonitrile and dimethylformide at a temperature of between -20.degree. to +40.degree. C. for a period of from one hour to six days is in the presence of one equivalent of a tertiary amine base.

15. A process according to claim 14, wherein the tertiary amine base is triethylamine.

16. A process according to claim 1, wherein the reaction of the methyl trisulfide antitumor antibiotic with an alkyl or aryl substituted mercaptan in acetonitrile or a combination of acetonitrile and tetrahydrofuran or acetonitrile and dimethylformide at a temperature of between -20.degree. to +40.degree. C. for a period of from one to six days is in the presence of a mixture of one equivalent of a tertiary amine base and one equivalent of an organic carboxylic acid.

17. A process according to claim 16, wherein the tertiary amine base is triethylamine and the organic carboxylic acid is acetic acid.

18. A process according to claim 1 for producing a compound of the formula: ##STR20## comprising reacting CH.sub.3 SSS--W with 4-nitrophenyl 3-mercaptoproprionate in acetonitrile at about -20.degree. C. for about 48 hours.
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