InChI=1S/C33H38N4O7/c1-7-20(19(6)33(43)44)24(34)13-25-17(4)22(9-11-30(38)39)28(35-25)15-29-23(10-12-31(40)41)18(5)26(36-29)14-27-16(3)21(8-2)32(42)37-27/h7-8,13-14,35-36H,1-2,9-12,15,34H2,3-6H3,(H,37,42)(H,38,39)(H,40,41)(H,43,44)/b20-19+,24-13-,27-14-