InChI=1S/C25H31N3O5/c29-21-8-2-19(3-9-21)6-12-24(32)27-16-1-15-26-18-23(31)14-17-28-25(33)13-7-20-4-10-22(30)11-5-20/h2-13,23,26,29-31H,1,14-18H2,(H,27,32)(H,28,33)/b12-6+,13-7?