InChI=1S/C31H44O6/c1-26(2)20-8-11-30(6)23(29(20,5)10-9-21(26)33)19(32)14-17-18-15-27(3)16-22(37-24(27)34)28(18,4)12-13-31(17,30)25(35)36-7/h14,18,20-23,33H,8-13,15-16H2,1-7H3/t18-,20?,21-,22-,23?,27-,28+,29-,30+,31+/m0/s1