Triethylamine → HCID 22280772, compound

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To a solution of 3-(3-cyano-4-fluorophenyl)-5-(aminomethyl)-5-(carbomethoxy)isoxazoline hydrochloride salt (1.15 g) in CH2Cl2 (50 mL) was added triethylamine (1.27 mL) and methanesulfonyl chloride (0.31 mL). The mixture was stirred at RT under N2 for 1 h. The solvent was diluted with CH2Cl2 and washed with water, 1N aqueous HCl, and saturated aqueous NaHCO3. It was dried over MgSO4 and concentrated to a yellow solid (1.13 g). 1H NMR (CDCl3) δ 7.92 (m, 2H), 7.30 (t, 1H), 4.82 (t, 1H), 3.84 (s, 3H), 3.76-3.60 (m, 4H), 3.03 (s, 3H) ppm; ESI mass spectrum z (rel. intensity) 377.9 (M+H, 100).

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