Dimethylformamide → HCID 86713533, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of (2R,6S)-4-(4-bromo-6-(1,3-dioxolan-2-yl)-2,3-difluorophenyl)-2,6-dimethylmorpholine (previously described in WO2004031195, page 81, 0.500 g, 1.32 mmol) and tetramethylethylene-diamine (0.12 mL, 2.12 mmol) in tetrahydrofuran (12 mL) at −78° C. is added t-buthyllithium (1.94 mL, 3.31 mmol). The reaction is stirred at −78° C. for 1.5 h and dimethylformamide is added. The reaction is stirred at −78° C. for an additional 30 min and warmed to rt. Mixture is diluted with ethylacetate (50 mL) and washed with saturated aqueous NH4Cl. (50 ml) and brine (30 mL). Dried over Na2SO4 and concentrated to give the title compound (433 mg): LCMS (M+H) 327.1.

Provenance & Evidence