Triethylamine → HCID 57280269, compound

Participants

Reaction Conditions

Reaction Steps

To a room temperature solution of 4.3 g (32.3 mmol) of 5,5-dimethyl-1,3-thiazolidine4-carboxylic acid (J. Med. Chem. 1989, 32(2 ), 466-472) in 30 ml of dioxane:water (2:1) containing 4.9 mL (35.5 mmol) of triethylamine was added 7.9 g (32.3 mmol) of 4-butynyloxybenzenesulfonyl chloride. The mixture was stirred at 25 ° C. for 18h. The resulting mixture was diluted with ethyl acetate and washed with 1N aqueous hydrochloric acid (3×). The organic phase was dried over anhydrous magnesium sulfate and concentrated in vacuo to afford a foam which was chromatographed on silica gel eluting with methanol/dichloromethane to give (4S)-3-{[4-(2- butynyloxy)phenyl]sulfonyl}-5,5-dimethyl-1,3-thiazolidine4-carboxylic acid as a white solid. Electrospray Mass Spec 368.1 (M−H)−

Provenance & Evidence