InChI=1S/C20H26O5/c1-4-10(2)16(21)25-17-12-5-6-15-19(3)11-7-14(24-18(19)22)13(9-23-17)20(12,15)8-11/h9-12,14-15,17H,4-8H2,1-3H3/t10-,11+,12-,14+,15-,17+,19-,20+/m1/s1