InChI=1/C21H28N4O3/c1-21(2,16-6-7-17-18(11-16)28-10-9-27-17)14-24-20(26)23-13-15-5-8-19(22-12-15)25(3)4/h5-8,11-12H,9-10,13-14H2,1-4H3,(H2,23,24,26)/p+1/fC21H29N4O3/h22-24H/q+1 BB973DC12F965CE5