InChI=1S/C27H38O5/c1-17-8-7-13-26(5)14-12-22(32-26)18(2)9-10-21-23(19(3)16-31-20(4)28)24(29)25(30)27(21,6)15-11-17/h7,9,11,13,19,21-22,29H,8,10,12,14-16H2,1-6H3/b13-7-,17-11-,18-9-/t19-,21-,22-,26-,27+/m1/s1