Patent number: 5958924
Abstract: Compounds of formula (I) ##STR1## in which A represents a 4-(thieno?3,2-c! pyridin-4-yl)-1-piperazinyl or 4-(4-fluorobenzoyl)-1-piperidyl group, R.sub.1 and R.sub.2 each represent, independently of one another, either a hydrogen or halogen atom, or an amino, hydroxyl, nitro, cyano, (C.sub.1 -C.sub.6)alkyl, (C.sub.1 -C.sub.6)alkoxy, trifluoromethyl, trifluoromethoxy or --COOH group, a group --COOR.sub.4, a --CONH.sub.2 group or a group --CONHR.sub.4, --CONR.sub.4 R.sub.5, --SR.sub.4, --SO.sub.2 R.sub.4, --NHCOR.sub.4, --NHS0.sub.2 R.sub.4 or --N(R.sub.4).sub.2, where R.sub.4 and R.sub.5 are each a (C.sub.1 -C.sub.4)alkyl group, R.sub.3 represents either a hydrogen atom, or a (C.sub.1 -C.sub.4)alkyl group, or a group --(CH.sub.2)OH, --(CH.sub.2).sub.p NH.sub.2, --(CH.sub.2).sub.n COOH, --(CH.sub.2).sub.n COOR.sub.4, --(CH.sub.2).sub.n CONH.sub.2, --(CH.sub.2).sub.n CONHOH, --(CH.sub.2).sub.p SH, --(CH.sub.2).sub.n SO.sub.3 H, --(CH.sub.2).sub.n SO.sub.2 NH.sub.2, --(CH.sub.2).sub.n SO.sub.2 NHR.sub.4, --(CH.
Type:
Grant
Filed:
February 4, 1998
Date of Patent:
September 28, 1999
Assignee:
SYNTHELABO
Inventors:
Gary McCort, Christian Hoornaert, Genevieve Dellac, Michel Aletru
Patent number: 5371233
Abstract: Compounds corresponding to the formula (I) ##STR1## in which X represents dibromomethyl, formyl, (C.sub.1-4)alkyl, or a group CH(OR.sub.5).sub.2 or CH(OH)OR.sub.5, wherein the or each R.sub.5 is hydrogen (C.sub.1-3)alkyl or the two R.sub.5 's in the case of CH(OR.sub.5).sub.2 are linked to provide a 1,3-dioxolane or 1,3-dioxane ring, and Y represents hydrogen, 1,1-dimethylethyl, triphenylmethyl, trimethylstannyl, tributylstannyl, (1,1-dimethylethyl)dimethylsilyl, (1,1-dimethylethyl)diphenylsilyl, 2-cyanoethyl, or a group CH.sub.2 OR.sub.6 wherein R.sub.6 is methyl, phenylmethyl, 1,1-dimethylethyl, 2,2,2-trichloroethyl, benzyloxycarbonyl or 2,2,2-trichloroethyloxycarbonyl, Y being in position 1 or 2 on the tetrazole ring. The compounds of formula (I) are useful as intermediates in the synthesis of compounds possessing therapeutic activity.
Type:
Grant
Filed:
December 29, 1992
Date of Patent:
December 6, 1994
Assignee:
Synthelabo
Inventors:
Marc Daumas, Christian Hoornaert, Isaac Chekroun, Manuel Bedoya-Zurita, Jose Ruiz-Montes, Guy Rossey, Helene Greciet