Methyl 2-amino-4-[4-(methoxycarbonyl)phenyl]-7,7-dimethyl-5-oxo-5,6,7,8-tetrahydro-4H-chromene-3-carboxylate 1g

Methyl 2-amino-4-[4-(methoxycarbonyl)phenyl]-7,7-dimethyl-5-oxo-5,6,7,8-tetrahydro-4H-chromene-3-carboxylate 1g