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