2-butenoic acid, 4-[(4-methoxyfuro[2,3-b]quinolin-7-yl)oxy]-2-methyl-, methyl ester, (2E)- InChI=1/C18H17NO5/c1-11(18(20)22-3)6-8-23-12-4-5-13-15(10-12)19-17-14(7-9-24-17)16(13)21-2/h4-7,9-10H,8H2,1-3H3/b11-6 methyl (2E)-4-[(4-methoxyfuro[2,3-b]quinolin-7-yl)oxy]-2-methylbut-2-enoate