InChI=1/C22H15N3O3/c26-22-18-11-5-6-12-19(18)23-21(24(22)17-9-2-1-3-10-17)15-14-16-8-4-7-13-20(16)25(27)28/h1-15H/b15-14+ 4C189B6C34A9B130