InChI=1S/C21H39NO5/c1-5-6-7-10-13-18(23)14-11-8-9-12-15-21(26)27-19(16-20(24)25)17-22(2,3)4/h8,11,18-19,23H,5-7,9-10,12-17H2,1-4H3