tert-Butyl 4-[({[(2S,5R)-6-(benzyloxy)-7-oxo-1,6-diazabicyclo[3.2.1]oct-2-yl]carbonyl}amino)oxy]piperidine-1-carboxylate → tert-Butyl 4-[({[(2S,5R)-6-hydroxy-7-oxo-1,6-diazabicyclo[3.2.1]oct-2-yl]carbonyl}amino)oxy]piperidine-1-carboxylate

HRID 1053330Notes

Reaction equation

HRID 1053330 reaction equation
C([O:8][N:9]1[C:15](=[O:16])[N:14]2[CH2:17][C@H:10]1[CH2:11][CH2:12][C@H:13]2[C:18]([NH:20][O:21][CH:22]1[CH2:27][CH2:26][N:25]([C:28]([O:30][C:31]([CH3:34])([CH3:33])[CH3:32])=[O:29])[CH2:24][CH2:23]1)=[O:19])C1C=CC=CC=1.[H][H]>CO.[Pd]>[OH:8][N:9]1[C:15](=[O:16])[N:14]2[CH2:17][C@H:10]1[CH2:11][CH2:12][C@H:13]2[C:18]([NH:20][O:21][CH:22]1[CH2:27][CH2:26][N:25]([C:28]([O:30][C:31]([CH3:34])([CH3:33])[CH3:32])=[O:29])[CH2:24][CH2:23]1)=[O:19]

Participants

5

Reactant 2

HCID 86693933tert-Butyl 4-[({[(2S,5R)-6-(benzyloxy)-7-oxo-1,6-diazabicyclo[3.2.1]oct-2-yl]carbonyl}amino)oxy]piperidine-1-carboxylateHCID 178418361HCID 178418361, compound

Product 1

HCID 86693934tert-Butyl 4-[({[(2S,5R)-6-hydroxy-7-oxo-1,6-diazabicyclo[3.2.1]oct-2-yl]carbonyl}amino)oxy]piperidine-1-carboxylateYield 98%

Reagents, catalysts & solvents 2

HCID 23938PalladiumCatalystHCID 887MethanolSolvent

Procedure

To a solution of tert-butyl 4-[({[(2S,5R)-6-(benzyloxy)-7-oxo-1,6-diazabicyclo[3.2.1]oct-2-yl]carbonyl}amino)oxy]piperidine-1-carboxylate 27 (0.5 g, 1.05 mml) in methanol (30 mL) was added 5% Pd/C (0.5 g). The mixture was hydrogenated under 35 psi hydrogen atmosphere at room temperature for 1 h. The catalyst was filtered out through Celite, and the filtrate was evaporated to give tert-butyl 4-[({[(2S,5R)-6-hydroxy-7-oxo-1,6-diazabicyclo[3.2.1]oct-2-yl]carbonyl}amino)oxy]piperidine-1-carboxylate 28 (0.395 g, 98%) as a colorless foam.

Workup

  1. filtrationThe catalyst was filtered out through Celite
  2. customthe filtrate was evaporated

Sources & evidence

ORD record
ord-0357505a9c1a43e3941c6f959a2387f4
Source dataset
uspto-grants-2016_07
Patent number
US09393239B2

Reaction notes

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