InChI=1S/C17H18O5/c1-20-12-5-3-10(4-6-12)17-14(19)9-13-15(21-2)7-11(18)8-16(13)22-17/h3-8,14,17-19H,9H2,1-2H3/t14-,17+/m0/s1