OzagrelOzagrel is an antiplatelet agent working as a thromboxane A2 synthesis inhibitor.SynthesisThe free-radical halogenation of ethyl 4-methylcinnamate with N-bromosuccinimide in the presence of benzoyl peroxide gives ethyl 4-bromomethylcinnamate. Alkylation of imidazole with this material gives the ethyl ester of the drug, which is saponified to give ozagrel.