InChI=1/C21H28N4O3/c1-15-7-9-17(10-8-15)19(26)13-23-21(28)22-12-16-5-4-6-18(11-16)24-20(27)14-25(2)3/h4-11,19,26H,12-14H2,1-3H3,(H,24,27)(H2,22,23,28)/p+1/t19-/m0/s1/fC21H29N4O3/h22-25H/q+1 C818FE3AE6E662F3