InChI=1/C20H22N4O3/c1-11-17-18(14(10-21)19(22)27-20(17)24-23-11)12-7-8-15(16(9-12)25-2)26-13-5-3-4-6-13/h7-9,13,18,20H,3-6,22H2,1-2H3/t18-,20+/m0/s1 BE79E944DA9807CB