InChI=1/C21H28N4O3/c26-21(23-20-16-8-13-7-14(10-16)11-17(20)9-13)15-1-2-18(19(12-15)25(27)28)24-5-3-22-4-6-24/h1-2,12-14,16-17,20,22H,3-11H2,(H,23,26)/p+1/fC21H29N4O3/h22-23H/q+1 E93B7DF53E66D97C