Pyridine → N-(2-((3,5-dimethylisoxazol-4-yl)methyl)-2H-tetrazol-5-yl)-3-methoxybenzamide

Participants

Reaction Steps

2-((3,5-dimethylisoxazol-4-yl)methyl)-2H-tetrazol-5-amine (Example 10-39a) (102 mg, 0.528 mmol), 3-methoxybenzoyl chloride (0.065 mL, 0.528 mmol) and pyridine (0.043 mL, 0.528 mmol) in acetonitrile (3 mL) were stirred at 100° C. for one hour. The reaction was diluted with dichloromethane (30 mL) and washed with brine (30 mL). The organics were dried over sodium sulfate, concentrated and purified by reverse phase HPLC (Solvent system: acetonitrile/water 10% to 100% gradient), 25 minute run) affording N-(2-((3,5-dimethylisoxazol-4-yl)methyl)-2H-tetrazol-5-yl)-3-methoxybenzamide as a white crystalline solid (60 mg, 35% yield) MS M+H calculated 329.1; found 329. 1H NMR (400 MHz, DMSO-d6): δ 2.02 (s, 3H), 2.46 (s, 3H), 3.81 (s, 3H), 5.78 (s, 2H), 7.16 (m, 1H), 7.42 (t, J=8 Hz, 2H), 7.54 (m, 1H), 11.3 (s, 1H). The compound had an IC50 on hT2R8 bitter receptor of 1.87 μM.

Provenance & Evidence