Methanesulfonyl chloride → HCID 18464455, compound

Participants

Reaction Steps

Combine 1-(3,4,5-trimethoxybenzoyl)-3-(pyrid-4-yl)-3-(2-hydroxyethyl)pyrrolidine (0.32 g, 0.83 mmol) and N,N-diisopropylethylamine (0.46 mL, 2.64 mmol) in dichloromethane (50 mL). Cool in an ice bath. Add dropwise methanesulfonyl chloride (0.096 mL, 1.24 mmol). After 1 hour, warm to ambient temperature. Again cool in an ice bath and add N,N-diisopropylethylamine (0.23 mL, 1.32 mmol) followed by methanesulfonyl chloride (0.096 ml, 1.24 mmol). After 1 hour, dilute the reaction mixture with dichloromethane and extract with a saturated aqueous solution of sodium bicarbonate. Dry the organic layer over MgSO4, filter, and evaporate in vacuo to give the title compound: Rf=0.24 (silica gel, 5% methanol/dichloromethane/0.1% concentrated aqueous ammonia).

Provenance & Evidence