InChI=1S/C34H48O7/c1-19(16-23(37)17-20(2)30(38)39)26-18-29(41-22(4)36)34(9)25-10-11-27-31(5,6)28(40-21(3)35)13-14-32(27,7)24(25)12-15-33(26,34)8/h10,12,17,19,26-29H,11,13-16,18H2,1-9H3,(H,38,39)/b20-17-