Methanesulfonyl chloride → HCID 86603406, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of tert-butyl{2-[3,5-bis(trifluoromethyl)phenyl]-2-hydroxyethyl}{[5′-isopropyl-2′-methoxy-4-(trifluoromethyl)biphenyl-2-yl]methyl}carbamate (350.1 mg, 0.516 mmol) in CH2Cl2 (15 mL) was added DIPEA (450 μL, 2.58 mmol). The solution was cooled to 0° C. and MsCl (100 μL, 1.29 mmol) was added. After 45 minutes of stirring at 0° C., the reaction was diluted with EtOAc (100 mL) and washed with saturated NaHCO3 (25 mL), brine (25 mL), 1N HCl (25 mL), and brine (2×25 mL). The organic layer was dried over Na2SO4, filtered, and concentrated. The residue was put through a short plug of silica gel with 25% EtOAc/hexanes and concentrated. The product, 1-[3,5-bis(trifluoromethyl)phenyl]-2-((tert-butoxycarbonyl){[5′-isopropyl-2′-methoxy-4-(trifluoromethyl)biphenyl-2-yl]methyl}amino)ethyl methanesulfonate, was used immediately in the next reaction without further characterization. Rf=0.33 (25% EtOAc/hexanes).

Provenance & Evidence