InChI=1/C20H21N5O/c1-13-4-3-5-16(14(13)2)24-20(26)25-11-8-17-18(23-12-22-17)19(25)15-6-9-21-10-7-15/h3-7,9-10,12,19H,8,11H2,1-2H3,(H,22,23)(H,24,26)/t19-/m0/s1/f/h22,24H 6CAA9D89487FB27C