InChI=1S/C22H31NO4/c1-17(2)15-23-22(25)9-7-5-3-4-6-8-19(24)12-10-18-11-13-20-21(14-18)27-16-26-20/h3,5,10-14,17,19,24H,4,6-9,15-16H2,1-2H3,(H,23,25)/b5-3+,12-10+