InChI=1S/C35H56O7/c1-18(2)19(3)8-9-20(4)23-12-13-25-22-10-11-24-21(5)27(15-17-35(24,7)26(22)14-16-34(23,25)6)41-33-30(38)28(36)29(37)31(42-33)32(39)40/h8,10,18,20-21,23-31,33,36-38H,9,11-17H2,1-7H3,(H,39,40)/b19-8+