InChI=1S/C23H38O4/c1-13(10-21(26)27)17-6-7-18-16-5-4-14-11-15(24)8-9-22(14,2)19(16)12-20(25)23(17,18)3/h13-20,24-25H,4-12H2,1-3H3,(H,26,27)