alpha-ethyl-3-methoxy-4-oxo-2-phenyl-4h-1-benzopyran-6-acetic aci methyl es |
methyl 2-(3-methoxy-2-phenylchromon-6-yl)butanoate |
methyl alpha-ethyl-3-methoxy-4-oxo-2-phenyl-4h-1-benzopyran-6-acetate |
alpha-ethyl-3-methoxy-4-oxo-2-phenyl-4h-1-benzopyran-6-acetic aci methyl ester |