InChI=1S/C24H38O4/c1-23-11-9-17(26)13-16(23)4-5-18-20-7-6-19(15(14-25)3-8-22(27)28)24(20,2)12-10-21(18)23/h4,15,17-21,25-26H,3,5-14H2,1-2H3,(H,27,28)/t15?,17?,18-,19?,20-,21-,23-,24+/m0/s1