抄録
1-Cyano-4-imino-2-methylthio-4H-pyrido [1, 2-c] pyrimidine (III) was obtained from 2-pyridineacetonitrile and dimethyl cyanamidedithiocarboxylate, and the reactivity of III was examined. The reaction of III with an amine, acetic anhydride, and methyl iodide gave the corresponding products (X, IV, and V), while III or 3-cyano-4-imino-4H-pyrido [1, 2-α] pyrimidine (IX) and dimethyl acetylenedicarboxylate afforded 1, 9-diazacycl-[3, 3, 3] azine derivative (XII) and 1, 4-diazacycl [3, 3, 3] azine derivative (XIII). The reaction of XII or XIII with an amine resulted in the formation of corresponding products (XIV, XV).
