Allyl bromide → HCID 58573449, compound

Participants

Reaction Steps

A solution of lithium bis(trimethylsilyl)amide (1M in THF, 0.165 mL, 0.165 mmol) was added dropwise at −78° C. to a solution of (S)-tert-butyl 2-((2S,3R)-3-(3-chlorophenyl)-2-(4chlorophenyl)-6-oxopiperidin-1-yl)-2-cyclopropylacetate (Example 249, Step C, 71 mg, 0.15 mmol) and allyl bromide (15.54 uL, 0.165 mmol) in 0.5 mL of THF. The reaction was allowed to warm to ambient temperature. After stirring for 2 h, the reaction was quenched with sat. aqueous ammonium chloride solution and extracted with ethyl acetate. The combined organic layers were washed with sat. aq. NaCl solution and dried over sodium sulfate, then filtered and the filtrate was concentrated under reduced pressure. Purification by flash chromatography on silica gel eluting with ethyl acetate/hexane provided the title compound.

Provenance & Evidence