Triethylamine → HCID 86695216, compound

Participants

Reaction Steps

To a solution of tert-butyl N-(4-[[(3R)-3-(2-amino-2-cyanoethyl)-7-thia-9,11-diazatricyclo[6.4.0.0[2,6]]dodeca-1(8),2 (6),9,11-tetraen-12-yl]oxy]cyclohexyl)-N-methylcarbamate (800 mg, 1.70 mmol, 1.00 equiv) and triethylamine (340 mg, 3.36 mmol, 2.00 equiv) in dichloromethane (50 mL) was added dropwise a solution of benzyl chloroformate (320 mg, 1.88 mmol, 1.10 equiv) in 10 mL of DCM at 0° C. The resulting solution was stirred for 30 min at this temperature and then quenched with water. The resulting solution was extracted with 3×50 mL of ethyl acetate and the combined organic layers were washed with brine, dried over sodium sulfate and concentrated under vacuum. The residue was applied onto a silica gel column with ethyl acetate/petroleum ether (1:10-1:5) to give benzyl N-[2-[(3R)-12-[(4-[[(tert-butoxy)carbonyl](methyl)amino]cyclohexyl)oxy]-7-thia-9,11-diazatricyclo[6.4.0.0[2,6]]dodeca-1(8),2 (6),9,11-tetraen-3-yl]-1-cyano ethyl]carbamate (0.5 g, 49%) as a white solid.

Provenance & Evidence