InChI=1S/C27H38O5/c1-16-7-11-22-18(3)9-12-23(32-22)17(2)8-10-21-24(19(4)15-31-20(5)28)25(29)26(30)27(21,6)14-13-16/h8,13,19,21-23,29H,3,7,9-12,14-15H2,1-2,4-6H3/b16-13+,17-8+/t19-,21-,22-,23-,27+/m1/s1