反应详情

In a manner similar to that described for the preparation of 7-n-butyl-3-(1H-tetrazol-5-yl)-4H-pyrido[1,2-a]pyrimidin-4-one in Example 7, the title compound (m.p. 308°-309° decomp) was prepared in 31% yield from ethyl 2-cyano-3-(5-phenyl-2-pyridylamino)acrylate.