Hoffmann-la Roche Inc.

G Erard Schmid

Jean Ackermann

Kurt Hilpert

David Banner

Klaus Gubernator

Paul Hadvary

Beat Wirz

Hans Peter Wessel

Thomas B Tschopp

Ludvik Labler

Klaus M Uller

Compounds of the formula ##STR1## wherein L, M, R, T and X are set forth in the description, as well as hydrates or solvates thereof, which inhibit thrombin-induced platelet aggregation and clotting of fibrinogen in plasma, are described. The compounds of formula I are prepared by amidination or, depending on whether L is NH or O, by amide formation or esterification.

Guanidine derivatives

Sulfonamidocarboxamides of the formula ##STR1## wherein A, M, Q, X and Y have the significance given in the description, as well as hydrates, solvates and salts thereof, which inhibit thrombin-induced blood platelet aggregation and clotting of fibrinogen in plasma, as described. The compounds of formula I can be prepared by amidination of a cyclic amino group standing for grouping X or by C(O)N(Q) amide formation.

Sulfonamidocarboxamides

The novel carboxamides of the formula ##STR1## wherein A, E, G, L, M, R and Q have the significance given in the description, as well as hydrates or solvates thereof inhibit thrombin-induced platelet aggregation and fibrinogen coagulation in plasma. They can be manufactured starting from the corresponding acid and the corresponding amine H.sub.2 NCH.sub.2 Q.

Carboxamides

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Kienberg, Switzerland

G Erard Schmid