反应详情

The title compound (m.p. 98.5°-99.5°, 84% yield) was prepared from 2-amino-3-n-butylpyridine and ethyl ethoxymethylenecyanoacetate in a manner similar to that described for the preparation of ethyl 2-cyano-3-(5-n-butyl-2-pyridylamino)acrylate in Preparation 3D of U.S. Pat. No. 4,122,274.