InChI=1S/C24H38O4/c1-5-9-11-17(7-3)15-19-13-14-20(23(25)26)22(24(27)28)21(19)16-18(8-4)12-10-6-2/h13-14,17-18H,5-12,15-16H2,1-4H3,(H,25,26)(H,27,28)