InChI=1S/C27H36N2O4/c1-17(2)21-9-7-18(3)22-14-24(32-25(30)10-8-20-15-29(6)16-28-20)26(5)11-12-27(31,33-26)19(4)13-23(21)22/h7-8,10-13,15-17,21-24,31H,9,14H2,1-6H3/b10-8+,19-13-