A small set of 9-(lupinylthio)xanthene, -thioxanthenes and alpha-(lupinylth
io)diphenylmethanes was prepared and found to inhibit the angiotensin II-in
duced contractions of guinea pig ileum. Some of these compounds were also m
oderately active in vitro as tracheal relaxants and one compound was more a
ctive than aspirin against arachidonic acid-induced platelet aggregation. (
C) 1999 Elsevier Science S.A. All rights reserved.