InChI=1S/C24H38O4/c1-22-11-5-4-6-15(22)14-18(25)21-16-7-8-19(23(16,2)12-9-17(21)22)24(3,28)13-10-20(26)27/h15-17,19,21,28H,4-14H2,1-3H3,(H,26,27)/t15?,16?,17?,19?,21?,22-,23-,24?/m0/s1