(5-Amino-3-(3,5-dimethoxyphenyl)-1,2-dihydro-2-dihydro-2-methylpyrido(3,4-b)pyrazin-7-yl)-, carbamic acid, ethyl ester 87607-26-9 Carbamic acid, (5-amino-3-(3,5-dimethoxyphenyl)-1,2-dihydro-2-methylpyrido(3,4-b)pyrazin-7-yl)-, ethyl ester Ethyl (5-amino-3-(3,5-dimethoxyphenyl)-1,2-dihydro-2-methylpyrido(3,4-b)pyrazin-7-yl)carbamate