InChI=1S/C27H43NO4/c1-16(29)19-8-9-20-18-7-6-17-12-22(30)21(28-10-11-32-25(2,3)15-28)13-26(17,4)24(18)23(31)14-27(19,20)5/h17-22,24,30H,6-15H2,1-5H3