InChI=1S/C24H38O3/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-18-21(25)24-22(26)19-17-20-23(24)27/h8-9,17,19-20,26-27H,2-7,10-16,18H2,1H3/b9-8-