2,6-Dichlorobenzoyl chloride → HCID 12042590, compound

Participants

Reaction Steps

To a solution of 4-amino-N-[[1-[2-(acetylamino)ethyl]cyclopentyl]thioxomethyl]-L-phenylalanine methyl ester (195 mg, 0.498 mmol) and diisopropylethylamine (0.0950 mL, 0.548 mmol) in dichloromethane (1 mL) was added a solution of 2,6-dichlorobenzoyl chloride (110 mg, 0.523 mmol) in dichloromethane (1 mL). The resultant mixture was stirred overnight then was concentrated in vacuo and transferred to a separatory funnel containing ethyl acetate (50 mL) and water (10 mL). The separated aqueous layer back-extracted with ethyl acetate (1×25 mL). The combined organic layer was washed in turn sat. solution of Na2CO3 and brine, then was dried over MgSO4, filtered and concentrated in vacuo to provide crude N-[[1-[2-(acetylamino)ethyl]cyclopentyl]thioxomethyl]-4-[[(2,6-dichlorophenyl)carbonyl]amino]-L-phenylalanine methyl ester (300 mg).

Provenance & Evidence