InChI=1/C21H28N4O2/c1-21(2,23-14-20(27)25-10-5-8-18(25)13-22)12-19(26)24-11-9-16-6-3-4-7-17(16)15-24/h3-4,6-7,18,23H,5,8-12,14-15H2,1-2H3/p+1/t18-/m0/s1/fC21H29N4O2/h23H/q+1 962E6FA401D364B2