InChI=1S/C22H31NO4/c1-16(2)14-23-22(24)12-11-20-19(27-20)8-6-4-3-5-7-17-9-10-18-21(13-17)26-15-25-18/h5,7,9-10,13,16,19-20H,3-4,6,8,11-12,14-15H2,1-2H3,(H,23,24)/b7-5+