Ammonia → HCID 59024422, compound

Participants

Reaction Steps

A solution of 2-[5-(2-amino-pyrimidin-4-ylamino)-1H-indazol-7-yl]-1H-indole-7-carboxylic acid (Example #F.5.11, 0.100 g, 0.000259 mol) and N,N-carbonyldiimidazole (0.0842 g, 0.000519 mol) in N,N-dimethylformamide (2.5 mL, 0.032 mol) was heated at about 55° C. for about 45 min. The mixture was cooled with an ice bath and treated with ammonia gas for about 15 min at about 0° C. The mixture was sealed and allowed to warm to ambient temperature. After about 1 hour the mixture was opened to atmosphere, and a 1.2 mL portion of the mixture was purified by reverse phase preparative HPLC (Thermo Hypersil-Keystone 250×21.2 mm 8μ Hypersil® HS C18 column; 5% CH3CN/50 mM aqueous ammonium acetate hold for 5 min; 5-50% CH3CN/50 mM aqueous ammonium acetate over 20 min; 50-100% CH3CN/50 mM aqueous ammonium acetate over 1 min; hold at 100% CH3CN for 5 minutes, 21 mL/min) then filtered to remove the remaining acid. The filtrate was then lyophilized to yield 2-[5-(2-amino-pyrimidin-4-ylamino)-1H-indazol-7-yl]-1H-indole-7-carboxylic acid amide (2 mg, 2% yield): LC/MS Rt (Method e) 0.7 min; m/z (M+H)+ 385.4.

Provenance & Evidence