Zeneca Limited

Michael Garth Wayne

Michael J Smithers

Alan Wellington Faull

Andrew G Brewster

Robert J Pearce

Peter W Caulkett

Richard E Shute

John Wall Rayner

Stuart D Mills

Sturat D Mills

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. Novel intermediates are also disclosed.

Heterocyclic derivatives

Heterocyclic compounds

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.

Growing community of inventors

Stoke on Trent, United Kingdom

Michael Garth Wayne