InChI=1S/C24H38O4/c1-15(3-8-22(27)28)19-6-7-21-18-5-4-16-13-17(26)9-11-23(16,2)20(18)10-12-24(19,21)14-25/h4,15,17-21,25-26H,3,5-14H2,1-2H3,(H,27,28)/t15?,17?,18-,19?,20+,21+,23+,24+/m1/s1