InChI=1/C20H16N4O3/c25-18-12-16(14-7-3-1-4-8-14)11-17(15-9-5-2-6-10-15)19(18)23-13-21-20(22-23)24(26)27/h1-10,12-13,17,19H,11H2/t17-,19-/m0/s1 49D6ED6F0460CC20