Unsymmetrically Substituted Furoxans, XIV. Synthesis and Structure of a Trimer of the Furoxan System with High Vasodilator and Platelet Antiaggregatory Activity

The synthesis and structure of a trimer 5 of the furoxan system are reported. The probable origin of this derivative is the dimerization of the intermediate 4‐phenyl‐3‐furoxancarbonitrile oxide ( 4 ) obtained by decomposition of the corresponding nitrolic acid 3 . The title compound shows a high level of activity as vasodilator and inhibitor of platelet aggregation.