InChI=1/C20H18N4O6/c1-20(18(27)23-19(28)24-20)12-3-5-13(6-4-12)22-16(25)9-21-17(26)11-2-7-14-15(8-11)30-10-29-14/h2-8H,9-10H2,1H3,(H,21,26)(H,22,25)(H2,23,24,27,28)/t20-/m0/s1/f/h21-24H 277C9C36D52D8B04