InChI=1/C28H34N2O4/c1-16(2)24(30-26(32)19-12-14-20(15-13-19)28(5,6)7)27(33)34-18(4)25(31)23-17(3)29-22-11-9-8-10-21(22)23/h8-18,24H,1-7H3,(H,30,32)/p+1/t17-,18-,24-/m0/s1/fC28H35N2O4/h29-30H/q+1 FE27E67C1A9876E3