Triethylamine → methyl 4-chloro-2-[(4,6-dimethoxy-2-methylpyrimidin-5-yl)amino]-1-(3-hydroxypropyl)-1H-benzimidazole-7-carboxylate

Participants

Reaction Conditions

Reaction Steps

A mixture of the resulting thiourea (435 mg), 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride (195 mg, 1.02 mmol), and triethylamine (0.15 mL) in tetrahydrofuran (5.0 mL) was stirred at 50° C. for 13 hr. The mixture was diluted with saturated aqueous sodium hydrogen carbonate, and extracted with ethyl acetate. The combined organic layer was washed with brine, dried over anhydrous magnesium sulfate, filtered and concentrated in vacuo. The residue was washed with diisopropyl ether to give the title compound as a colorless powder (210 mg, 0.482 mmol, 6% in 2 steps).

Provenance & Evidence