Triethylamine → (4-[(cyclopropylamino)carbonyl]-1-{4-[(ethylamino)carbonyl]phenyl}-1H-1,2,3-triazol-5-yl)methyl methanesulfonate

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Reaction Conditions

Reaction Steps

N-Cyclopropyl-1-{4-[(ethylamino)carbonyl]phenyl}-5-(hydroxymethyl)-1H-1,2,3-triazole-4-carboxamide (1.12 g, 3.39 mmol) obtained in Example 112 and mesyl chloride (0.293 ml, 3.73 mmol, 1.1 eq.) were dissolved in THF (22 ml), and a solution of triethylamine (0.615 ml, 4.41 mmol, 1.3 eq.) in THF (2 ml) was added dropwise over 10 min with stirring at 0° C. The reaction mixture was stirred at 0° C. for 50 min. The reaction mixture was diluted with ethyl acetate (50 ml) and washed with 10% brine and saturated brine. The aqueous layers were each extracted with ethyl acetate (50 ml). The organic layers were combined, dried over anhydrous sodium sulfate and concentrated. Diethyl ether was added and the precipitate was collected by filtration, washed with diethyl ether and dried to give the title compound as a white powder (1.31 g, 3.21 mmol, 94.6%).

Provenance & Evidence