Ethanolamine → 3-[3-(4-Fluoro-benzoylamino)-phenoxymethyl]-thieno[3,2-c]pyridine-7-carboxylic acid (2-hydroxy-ethyl)-amide

Participants

Reaction Conditions

Reaction Steps

A suspension of 3-[3-(4-fluoro-benzoylamino)-phenoxymethyl]-thieno[3,2-c]pyridine-7-carboxylic acid ethyl ester (25.1 mg, 0.056 mmol) (from Example 8 supra) in methyl sulfoxide (0.5 mL) and ethanolamine (1.5 mL) (Aldrich) was heated at 135° C. for 2 hours in a microwave reactor. The solvent was removed in vacuum and the crude product was purified by column chromatography (CH2Cl2/MeOH, 98/2 to 80/20) to give two products. The faster eluting material gave 3-[3-(4-fluoro-benzoylamino)-phenoxymethyl]-thieno[3,2-c]pyridine-7-carboxylic acid (2-hydroxy-ethyl)-amide as a white solid. (Yield 7.3 mg, 28%).

Provenance & Evidence