Acetals of lactams and acid amides. 39. Synthesis of three-ring derivatives of pyrido [l,2-a] pyrimidines on the basis of the reaction of dimethylformamide acetal with dicyanomethylenecycloalkanes
作者:V. G. Granik、N. I. Smetskaya、N. A. Mukhina、I. V. Persianova、V. G. Klimenko