Sodium borohydride → Tert-butyl 3-(3-chloro-2-fluoro-5-(1-hydroxyethyl)-6-methoxyphenyl)azetidine-1-carboxylate

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Reaction Steps

To a solution of tert-butyl 3-(3-acetyl-5-chloro-6-fluoro-2-methoxyphenyl)azetidine-1-carboxylate (0.17 g, 0.48 mmol) in methanol (3 mL) cooled at 0° C. was added sodium tetrahydroborate (0.022 g, 0.57 mmol). The mixture was stirred at room temperature for 1 hour, then diluted with water and extracted with EtOAc. The combined organic layers were dried over MgSO4 and concentrated to give the desired product (0.19 g). LCMS calculated for C17H23ClFNO4Na (M+Na)+: m/z=382.1. found: 382.0.

Provenance & Evidence