Dichloromethane → (3S,6R)-3-amino-6-(6-azido-hexyloxy)-1-methyl-azepan-2-one

Participants

Reaction Steps

To a stirred solution of [(3S,6R)-6-(6-azido-hexyloxy)-1-methyl-2-oxo-azepan-3-yl]-carbamic acid tert-butyl ester (0.32 g, 0.83 mmol) in CH2Cl2 (4 mL) is added TFA (1 mL) at room temperature. After 1 h, the reaction is evaporated under vacuum, toluene (20 mL) is added and evaporated under vacuum to remove remaining TFA. The residue is dissolved in CH2Cl2 (20 mL) saturated with NH3 adsorbed on silica and chromatographed (50% EtOAc/CH2Cl2/NH3 then 10% CH3OH/CH2Cl2/NH3) to give 0.207 g (88%) of (3S,6R)-3-amino-6-(6-azido-hexyloxy)-1-methyl-azepan-2-one as an oil. MS (ESI) 284.2 (M+H)+

Provenance & Evidence