InChI=1S/C21H37NO5/c1-5-6-7-8-9-10-11-12-13-14-18(23)15-21(26)27-19(16-20(24)25)17-22(2,3)4/h9-10,12-13,18-19,23H,5-8,11,14-17H2,1-4H3/b10-9-,13-12-