Ethyl Acetate → (R)-2-(N-Boc-N-methylamino)-1-(tert-butyldimethylsilyloxy)-but-3-yne

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Reaction Steps

(R)-2-(N-Boc-N-methylamino)-1-(tert-butyldimethylsilyloxy)-but-3-yne was synthesized according to Method Y above by the treatment of (R)-N-Boc-2-amino-1-(-tert-butyldimethylsilyloxy)-but-3-yne (200 mg, 0.67 mmol) (Example 104B) with NaH (21 mg, 0.87 mmol) and Mel (189 mg, 1.34 mmol) in THF (12 mL). The product was obtained after silica gel column chromatography with a 0-10% EtOAc in hexanes gradient. (Yield 200 mg, 95%).

Provenance & Evidence