上游原料
Phenyl hydrazine; 1-PhenylhydrazineAniline; Phenylaminebenzenediazonium chlorideethyl 9-bromo-6-methyl-4-oxo-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidine-3-carboxylateethyl 9-hydroxy-6-methyl-4-oxo-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidine-3-carboxylateethyl 6-methyl-4-oxo-9-[(Z)-2-phenylhydrazono]-7,8-dihydro-4H-pyrido[1,2-a]pyrimidine-3(6H)-carboxylateethyl 6-methyl-4-oxo-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidine-3-carboxylate6-methyl-4-oxo-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidine-3-carboxylic acid9,9-dibromo-6-methyl-4-oxo-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidine-3-carboxylic acid
