1,1-dimethylethyl [(3S)-1-methyl-2-oxo-2,3,4,7-tetrahydro-1H-azepin-3-yl]carbamate → (S)-tert-butyl 1-methyl-2-oxoazepan-3-ylcarbamate

Participants

Reaction Steps

To a degassed solution of 1,1-dimethylethyl [(3S)-1-methyl-2-oxo-2,3,4,7-tetrahydro-1H-azepin-3-yl]carbamate (Example 94) (680 mg, 2.8 mmol) in MeOH (20 mL) was added 10% Pd/C (100 mg) and the resulting suspension was stirred overnight under a balloon of hydrogen. Filtration of the catalyst and concentration of the filtrate under reduced pressure yielded 1,1-dimethylethyl [(3S)-1-methyl-2-oxohexahydro-1H-azepin-3-yl]carbamate (470 mg, 88%). LCMS: (M−tBut)+: 186.2.

Provenance & Evidence