Exploring 6298. To explore a different substance…

tert-Butyl 8-chloro-6-(4-chlorophenyl)-4H-imidazo[1,5-a][1,4]benzodiazepine-3-carboxylate
 6298  C22H19Cl2N3O2  428.311
 Aryldiazepine
 InChI=1S/C22H19Cl2N3O2/c1-22(2,3)29-21(28)20-18-11-25-19(13-4-6-14(23)7-5-13)16-10-15(24)8-9-17(16)27(18)12-26-20/h4-10,12H,11H2,1-3H3
 DIFFWKCMFRKUBQ-UHFFFAOYSA-N This stereoisomer Any stereoisomer
 Clc1ccc2c(c1)C(=NCc1n2cnc1C(=O)OC(C)(C)C)c1ccc(cc1)Cl