(5-Amino-1,2-dihydro-3-(3,4,5-trimethoxyphenyl)pyrido(3,4-b)pyrazin-7-yl)-, carbamic acid, ethyl ester 82586-01-4 Carbamic acid, (5-amino-1,2-dihydro-3-(3,4,5-trimethoxyphenyl)pyrido(3,4-b)pyrazin-7-yl)-, ethyl ester Ethyl (5-amino-1,2-dihydro-3-(3,4,5-trimethoxyphenyl)pyrido(3,4-b)pyrazin-7-yl)carbamate