InChI=1S/C22H29NO4/c1-17(2)15-23-22(25)11-7-6-10-19(24)9-5-3-4-8-18-12-13-20-21(14-18)27-16-26-20/h4,6-8,10-14,17,19,24H,3,5,9,15-16H2,1-2H3,(H,23,25)/b8-4+,10-6+,11-7+