Water → HCID 12042594, compound

Participants

Reaction Steps

To a solution of 4-amino-N-[(2-chloro-6-methylphenyl)thioxomethyl]-L-phenylalanine methyl ester (3.57 mmol, 1.296 g) and 2,6-dichlorobenzoyl chloride (3.75 mmol, 0.785 g) in dichloromethane (20 mL) was added diisopropylethylamine (5.35 mmol, 0.93 mL) at room temperature. The solution was stirred for 15 h at which time TLC analysis of the mixture indicated the absence of starting material. After the addition of water (30 mL), the layers were separated and the aqueous phase was extracted with dichloromethane (20 mL). The combined extracts were washed with brine (50 mL), dried (MgSO4) and concentrated under reduced pressure. The residue was purified by silica gel column chromatography ( hexane:ethyl acetate, 4:1 to 1:1) to obtain 1.91 g (83%) of N-[(2-chloro-6-methylphenyl)thioxomethyl]-4-[[(2,6-dichlorophenyl)carbonyl]amino]-L-phenylalanine methyl ester as an amorphous colorless solid. HRMS: Obs. mass, 535.0399. Calcd. mass, 535.0416 (M+H).

Provenance & Evidence