N-(1-Cyanocyclohexyl)-C-phenylnitrones and Glyoxaldinitrones

Abstract

Six N‐(1‐cyanocyclohexyl)‐C‐phenylnitrones 4a— f (4b— f for the first time) and 22 glyoxaldinitrones 7a— v were prepared and tested for antithrombotic (p.o. administration to rats, 60 mg/kg) effects. Both classes of compounds exhibit considerable antithrombotic activities. Maximum inhibition of thrombus formation in arterioles (21%) was observed in N,N′‐bis‐2‐phenylethylglyoxaldinitrone (7o) and N,N′‐bis‐4‐nitrobenzylglyoxaldinitrone (7u). The compounds form only small amounts of nitric oxide in vitro by the addition of a Fe 3+ ‐porphyrine complex and an oxygen donor