Sodium Bicarbonate → HCID 178483065, compound

Participants

Reaction Steps

A mixture of (2-chloro-quinazolin-4-yl)-dimethyl-amine (15.2 g, 73.3 mmol) and trans-(4-aminomethyl-cyclohexylmethyl)-carbamic acid tert-butyl ester (14.8 g, 61.0 mmol) in 2-propanol (80 mL) was stirred at reflux for 4 days, poured into saturated aqueous NaHCO3, and the aqueous layer was extracted with CHCl3 (three times). The combined organic layer was dried over MgSO4, filtered, concentrated, and purified by flash chromatography (NH-silica gel, 33% EtOAc in hexane) to give trans-{4-[(4-dimethylamino-quinazolin-2-ylamino)-methyl]-cyclohexylmethyl}-carbamic acid tert-butyl ester (20.4 g, 81%) as a pale yellow solid.

Provenance & Evidence