Diisopropylethylamine → 5-Pyridin-3-yl-thiophene-2-carboxylic acid 3-(2-methyl-1,2,3,4-tetrahydro-isoquinolin-7-ylcarbamoyl)-benzylamide

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Reaction Steps

To a solution of 5-pyridin-3-yl-thiophene-2-carboxylic acid (31 mg, 0.15 mmol) in DMF (1 mL) add Hunig's Base (0.10 mL, 0.54 mmol) and TBTU (52 mg, 0.16 mmol) and stir at rt for 20 min. To this add 3-aminomethyl-N-(2-methyl-1,2,3,4-tetrahydro-isoquinolin-7-yl)-benzamide dihydrochloride (50 mg, 0.1 mmol) and stir the solution for 18 h at rt. Concentrate the solution and purify the residue by prep-HPLC (10% to 90%, CH3CN/H2O) to provide the desired product 5-pyridin-3-yl-thiophene-2-carboxylic acid 3-(2-methyl-1,2,3,4-tetrahydro-isoquinolin-7-ylcarbamoyl)-benzylamide (62 mg, 0.087 mmol). MS, electrospray 483.8 (M+H), rt 0.88 min.

Provenance & Evidence