Sodium hydride → 2-(1-(4-cyano-3-ethoxyphenylsulfonyl)-2-methyl-1H-pyrrolo[2,3-b]pyridin-3-yl)acetic acid

Participants

Reaction Conditions

Reaction Steps

To a stirred, ice-cooled (0° C.) suspension of sodium hydride (26.3 mg of a 60% dispersion in mineral oil, 0.686 mmol) in dry THF (10 ml) under an inert atmosphere of Argon is added dropwise (2-methyl-1H-pyrrolo[2,3-b]pyridin-3-yl)-acetic acid methyl ester ((0.1 g, 0.49 mmol) in THF/DMF (4 ml of a 3:1 mixture). The reaction mixture is stirred at 0° C. for 1 hour and then treated with 4-cyano-3-ethoxy-benzenesulfonyl chloride (168 mg, 0.686 mmol) in dry THF (1 ml). Stirring continued at 0° C. for 10 minutes and at room temperature for 10 minutes and then the reaction mixture is poured onto water (50 ml). The mixture is extracted with ethyl acetate (2×50 ml) and the organic portions are combined, washed brine (50 ml), dried (MgSO4) and concentrated in vacuo. The resulting crude is purified by chromatography on silica eluting with iso-hexane/ethyl acetate (0%-20% ethyl acetate) to yield the titled product. (MH+ 414).

Provenance & Evidence