InChI=1/C20H21N5O3/c21-20(27)23-16-11-9-14(10-12-16)13-22-17(26)7-4-8-18-24-25-19(28-18)15-5-2-1-3-6-15/h1-3,5-6,9-12H,4,7-8,13H2,(H,22,26)(H3,21,23,27)/f/h22-23H,21H2 CD3FF8A6CDB6FCA7