Methanesulfonyl chloride → HCID 59725828, compound

Participants

Reaction Conditions

Reaction Steps

A solution of (3R)-1-[4-(1H-benzimidazol-1-yl)benzoyl]pyrrolidin-3-ol (2.30 g, 7.48 mmol) in anhydrous dichloromethane at 0° C. is treated with diisopropylethyl amine (2.13 g, 16.46 mmol) and methanesulfonyl chloride (1.29 g, 11.22 mmol), stirred at 0° C. for 2 hours and concentrated to give a crude oil. Purification of this oil by flash column chromatography (silica, methanol:dichloromethane 5:95) provides the title product as a yellow solid, 2.3 g (81% yield), identified by NMR and mass spectral analyses. MS [386.5 m/e (M+H)].

Provenance & Evidence