反应详情

The title compound (m.p. 255.5°-257.5° with decomposition, 30% yield) was prepared from ethyl 2-cyano-3-(3-n-butyl-2-pyridylamino)acrylate in a manner similar to that described for the preparation of 3-(1H-tetrazol-5-yl)-4H-pyrido[1,2-a]pyrimidin-4-one in Example 2 of U.S. Pat. No. 4,122,274.