InChI=1/C22H18N4O4/c27-17-8-4-7-16-19(17)18(13-9-11-15(12-10-13)26(29)30)20-21(23-16)24-25(22(20)28)14-5-2-1-3-6-14/h1-3,5-6,9-12,18,23-24H,4,7-8H2/t18-/m0/s1 6519E0F03D6F8013