InChI=1S/C28H38O5/c1-15(2)12-17-21-25(32)18(13-29)24(31)19(14-30)26(21)33-28(6)11-7-8-16(3)9-10-20-23(22(17)28)27(20,4)5/h8,13-15,17,20,22-23,31-32H,7,9-12H2,1-6H3/b16-8-