InChI=1/C20H22N6O2/c1-3-10-24-18-16(19(27)25(11-4-2)20(24)28)22-17(23-18)14-12-21-26(13-14)15-8-6-5-7-9-15/h5-9,12-13,27H,3-4,10-11H2,1-2H3/p-1/fC20H21N6O2/h27h/q-1 27D31A1D62D6E439