InChI=1S/C26H21N3O7/c30-9-14-21(31)22(32)23(33)26(36-14)29-13-8-4-2-6-11(13)16-18-17(24(34)28-25(18)35)15-10-5-1-3-7-12(10)27-19(15)20(16)29/h1-8,14,21-23,26-27,30-33H,9H2,(H,28,34,35)/t14-,21-,22+,23-,26-/m1/s1