We assessed the antithrombotic activity of some simple organosulfur compoun
ds which have some of the functionality found in the disulfide ajoene, a ph
armacologically active compound isolated from garlic. The results establish
that antithrombotic activity is associated with disulfides directly attach
ed to a phenyl ring and is further enhanced by an alpha-sulfonyl group. CH3
SO2CH2SSPh proved to be a potent inhibitor of platelet aggregation with an
IC50 of 5 mu M. (C) 2000 Academic Press.