InChI=1S/C22H33NO3/c1-18(2)17-23-22(25)13-11-9-7-5-4-6-8-10-12-19-14-15-20(24)21(16-19)26-3/h7,9-10,12,14-16,18,24H,4-6,8,11,13,17H2,1-3H3,(H,23,25)/b9-7+,12-10+