4-hydroxy-7,8-dimethoxy-3-(3-methyl-but-2-enyl)-1H-quinolin-2-one

硫酸二甲酯

(4-Hydroxy-7,8-dimethoxy-2-oxo-1,2-dihydro-quinolin-3-yl)-acetic acid

(Z)-2-(4-hydroxy-7,8-dimethoxy-2-oxo-1,2-dihydroquinolin-3-yl)-4-methylpent-2-enoic acid

4-Hydroxy-7,8-dimethoxy-3-[2-methyl-prop-(E)-ylidene]-3H-furo[2,3-b]quinolin-2-one