反应详情

The title compound (m.p. 313°-315° with decomposition, 44% yield) was prepared from ethyl 2-cyano-3-(3-chloro-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.