Ethyl 2-amino-3-ethoxycarbonyl-7,8-dimethyl-4-[4-(methylsulfanyl)phenyl]-5-oxo-4H-pyrano[3,2-c]chromene-3-carboxylate

In the title compound, C\sb 24H\sb 23NO\sb 5S, the pyran ring bearing the amino group adopts a flattened boat conformation. In the crystal structure, the mol\-ecules are linked by N—-H⋅sO hydrogen bonds