2H-Pyrido(1,2-a)pyrimidine-3-carboxylic acid, octahydro-1,6-dimethyl-4-oxo-, ethyl ester 33499-14-8 BRN 0919874 MZ-170 Octahydro-1,6-dimethyl-4-oxo-2H-pyrido(1,2-a)pyrimidine-3-carboxylic acid ethyl ester