InChI=1S/C22H31NO3/c1-3-18(2)23-22(24)13-11-9-7-5-4-6-8-10-12-19-14-15-20-21(16-19)26-17-25-20/h10-16,18H,3-9,17H2,1-2H3,(H,23,24)/b12-10+,13-11+