Triethylamine → Quinoline-6-carboxylic acid (5-(3-benzyloxy-phenoxy)-thiophen-2-ylmethyl)-amide

Participants

Reaction Steps

To a solution of C-(5-(3-benzyloxy-phenoxy)-thiophen-2-yl)-methylamine described in Preparation Example 18 (180 mg, 0.578 mmol) and 6-quinolinecarboxylic acid (100 mg, 0.578 mmol) in tetrahydrofuran (5 mL) were added benzotriazol-1-yloxytris(dimethylamino)phosphonium hexafluorophosphate (307 mg, 0.694 mmol) and triethylamine (0.16 mL, 1.16 mmol), and the solution was stirred overnight at room temperature. Ethyl acetate and water were added to the reaction solution, which was then partitioned, the organic layer was washed with water, and then, dried over anhydrous magnesium sulfate. The solvent was evaporated, the residue was purified by NH silica gel column chromatography (hexane: ethyl acetate), and quinoline-6-carboxylic acid (5-(3-benzyloxy-phenoxy)-thiophen-2-ylmethyl)-amide (73 mg, 27%) was obtained as a pale yellow solid.

Provenance & Evidence