Compounds of formula I ##STR1## and metabolically labile esters and amides thereof, and pharmaceutically acceptable salts thereof, in which R.sup.13, M.sup.2, X.sup.1, Z.sup.1, Z.sup.1a, X.sup.2 and A.sup.1 have the meanings given in the specification. The compounds are useful as inhibitors of the binding of fibrinogen to glycoprotein IIb/IIIa. Intermediates are also disclosed.
A compound of the general formula (M.sup.1).sub.n --Q--(M.sup.2).sub.1-n --L--A I wherein: n is 0 or 1; M.sup.1 is an amino group; Q is an aromatic heterocyclic group containing a basic nitrogen atom; M.sup.2 is an imino group; L is a template group; and A is an acidic group, or an ester or amide derivative thereof, or a sulphonamide group; and pharmaceutically acceptable salts and pro-drugs thereof, for use in the treatment of a disease in which platelet aggregation mediated by the binding of adhesion molecules to GPIIb-IIIa is involved. Novel compounds are also disclosed.
Quaternary pyridine salts useful for preparation of 4-substituted
申请人:Nepera, Inc.
公开号:US04772713A1
公开(公告)日:1988-09-20
Disclosed are compounds of the formula ##STR1## wherein R.sub.1 and R.sub.2 independently are H or C.sub.1-8 -alkyl or together are C.sub.2-7 -alkylene forming a ring with the connecting N-atom; X is CN, halo, C.sub.6-10 -arylsulfonyl, C.sub.6-10 -arylsulfinyloxy, C.sub.6-10 -aryloxy, C.sub.6-10 -arylthio or C.sub.1-8 -alkylsulfonyloxy or nitro, and Y is the anion of an acid having a pK.sub.a of about 3 or less. These compounds are intermediates in the preparation of 4-substituted pyridines.
Heterocyclic derivatives as platelet aggregation inhibitors
申请人:ZENECA LIMITED
公开号:EP0825184A1
公开(公告)日:1998-02-25
RS 3-Methyl-4-[4-(4-pyridyl)piperazin-1-yl]phenoxybutyric acid and metabolically labile ester or amides thereof, and pharmaceutically acceptable salts thereof useful as an inhibitor of the binding of fibrinogen to glycoprotein IIb/IIIa.