(4,5-Dimethoxy-7-oxo-5,7-dihydro-1,6-dioxa-8-aza-s-indacen-5-yl)-acetic acid methyl ester Furomegistine II InChI=1/C14H13NO7/c1-18-8(16)6-14(20-3)9-10(13(17)22-14)15-12-7(4-5-21-12)11(9)19-2/h4-5H,6H2,1-3H difuro[2,3-b:3',4'-e]pyridine-5-acetic acid, 5,7-dihydro-4,5-dimethoxy-7-oxo-, methyl ester methyl (4,5-dimethoxy-7-oxo-5,7-dihydrodifuro[2,3-b:3',4'-e]pyridin-5-yl)acetate