InChI=1S/C22H29NO4/c1-16(2)14-23-22(24)21-19(27-21)10-8-6-4-3-5-7-9-17-11-12-18-20(13-17)26-15-25-18/h7-13,16,19,21H,3-6,14-15H2,1-2H3,(H,23,24)/b9-7+,10-8+