InChI=1S/C23H38O7/c1-14(2)17-9-8-15(3)7-6-11-23(5,12-10-17)30-22-21(28-16(4)25)20(27)19(26)18(13-24)29-22/h7,10,12,14,17-22,24,26-27H,6,8-9,11,13H2,1-5H3/b12-10+,15-7+/t17-,18-,19-,20+,21-,22+,23-/m1/s1