InChI=1/C20H23ClN4O2/c21-14-4-9-18(17(12-14)20(22)27)23-13-19(26)24-15-5-7-16(8-6-15)25-10-2-1-3-11-25/h4-9,12,23H,1-3,10-11,13H2,(H2,22,27)(H,24,26)/f/h24H,22H2 DB4622412008EB83