Triethylamine → tert-butyl 5-(2-(3-(3-(2-(dimethylamino)ethyl)ureido)phenyl)quinazolin-4-ylamino)-1H-indazole-1-carboxylate

Participants

Reaction Steps

To a solution of tert-butyl 5-(2-(3-aminophenyl)quinazolin-4-ylamino)-1H-indazole-1-carboxylate (100 mg, 0.22 mmol) in anhydrous CH2Cl2 (2 mL) added Et3N (45 mg, 0.44 mmol) and 4-nitrophenyl carbonochloridate (47 mg 0.23 mmol). The solution was stirred at RT for 2 h. To the reaction mixture added N,N-dimethylethane-1,2-diamine (36 μL, 0.33 mmol) and stirred for 16 h. Concentrated in vacuo to afford the crude tert-butyl 5-(2-(3-(3-(2-(dimethylamino)ethyl)ureido)phenyl)quinazolin-4-ylamino)-1H-indazole-1-carboxylate.

Provenance & Evidence