InChI=1S/C22H31NO5/c1-14(19(16(3)24)6-4-5-7-22(27)28)12-15(2)20(25)13-21(26)17-8-10-18(23)11-9-17/h4-11,14-16,19-20,24-25H,12-13,23H2,1-3H3,(H,27,28)/b6-4+,7-5+