82585-94-2 Carbamic acid, (5-amino-3-(3,4-dimethylphenyl)-1,2-dihydropyrido(3,4-b)pyrazin-7-yl)-, ethyl ester Ethyl (5-amino-3-(3,4-dimethylphenyl)-1,2-dihydropyrido(3,4-b)pyrazin-7-yl)carbamate