InChI=1S/C27H35N3O7/c1-36-24-16-19(4-8-22(24)32)6-10-26(34)29-14-3-13-28-18-21(31)12-15-30-27(35)11-7-20-5-9-23(33)25(17-20)37-2/h4-11,16-17,21,28,31-33H,3,12-15,18H2,1-2H3,(H,29,34)(H,30,35)/b10-6+,11-7?