InChI=1S/C29H42O4/c1-17(2)18-9-12-28(23(30)31)15-16-29(24(32)33)19(22(18)28)7-8-21-26(5)14-13-25(3,4)20(26)10-11-27(21,29)6/h13-14,18-22H,1,7-12,15-16H2,2-6H3,(H,30,31)(H,32,33)/t18-,19+,20?,21?,22?,26-,27+,28-,29+/m0/s1