Trimethyl orthoformate → HCID 86618380, compound

Participants

Reaction Steps

To a solution of crude (2-chloro-4-morpholin-4-yl-thieno[3,2-d]pyrimidin-6-yl)-acetaldehyde (300 mg) and 1-methanesulfonyl-piperazine (243 mg) in 1,2-dichloroethane (10 mL) at room temperature was added trimethylorthoformate (0.33 mL). The reaction mixture was stirred at room temperature for 1 h and then sodium triacetoxyborohydride (534 mg) was added. The reaction mixture was stirred at room temperature for 16 h and then quenched with saturated aqueous sodium carbonate solution (20 mL) and extracted into dichloromethane (2×20 mL). The combined organics were washed with aqueous brine solution (2×20 mL), dried (MgSO4), concentrated and purified using column chromatography to give 2-chloro-6-[2-(4-methanesulfonyl-piperazin-1-yl)-ethyl]-4-morpholin-4-yl-thieno[3,2-d]pyrimidine as a white solid (100 mg).

Provenance & Evidence