(+/-)-cis-4-Benzyloxycarbonylamino-3-hydroxy-piperidine-1-carboxylic acid tert-butyl ester → Tert-butyl cis-4-amino-3-hydroxy-piperidine-1-carboxylate

Participants

Reaction Steps

To a stirred solution of (±)-cis-4-benzyloxycarbonylamino-3-hydroxy-piperidine-1-carboxylic acid tert-butyl ester (0.365 mmol, 0.128 g)) in methanol (3 mL) was added 10% palladium on carbon (0.07 g, wet). The resultant reaction mixture was subjected to hydrogenation using a balloon full of hydrogen for 2 h. The catalyst was filtered through a pad of celite. The pad was washed with methanol (10 mL), and the combined filtrate was concentrated under reduced pressure to get (±)-cis-4-amino-3-hydroxy-piperidine-1-carboxylic acid tert-butyl ester.

Provenance & Evidence