1,1'-Carbonyldiimidazole → HCID 136119390, compound

Participants

Reaction Steps

1,1′-Carbonyldiimidazole (37 mg, 0.23 mmol) was added to a solution of 5-(4-(aminomethyl)-3-methylbenzoyl)-1-methyl-4,10-dihydropyrazolo-[5,4-b][1,5]benzodiazepine (75 mg, 0.22 mmol) in DMF (2 ml). The solution was stirred for 1 h, a solution of 1-methylhomopiperazine (27 mg, 0.24 mmol) and DIEA (31 mg, 0.24 mmol) in DMF (1 ml) was added and stirring was continued for 24 h. The mixture was concentrated in vacuo and the residue was purified by chromatography on silica gel (eluant 30/2/1-1/1/1 chloroform/methanol/concentrated ammonia) to give a white solid identified as 1-methyl-5-(3-methyl-4-(4-methylperhydro-1,4-diazepine-1-carbonylaminomethyl)benzoyl)-4,10-dihydropyrazolo[5,4-b][1,5](38 mg, 36%).

Provenance & Evidence