1-Hydroxybenzotriazole → Di-tert-butyl [{4-[({[(2S,5R)-6-(benzyloxy)-7-oxo-1,6-diazabicyclo[3.2.1]oct-2-yl]carbonyl}amino)oxy]piperidin-1-yl}methylylidene]biscarbamate

HRID 2400638Notes

Reaction equation

HRID 2400638 reaction equation
[CH2:1]([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]([OH:20])=O)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[C:21]([O:25][C:26](=[O:45])[NH:27][C:28]([N:37]1[CH2:42][CH2:41][CH:40]([O:43][NH2:44])[CH2:39][CH2:38]1)=[N:29][C:30](=[O:36])[O:31][C:32]([CH3:35])([CH3:34])[CH3:33])([CH3:24])([CH3:23])[CH3:22].ON1C2C=CC=CC=2N=N1.Cl.C(N=C=NCCCN(C)C)C>C(Cl)Cl>[C:32]([O:31][C:30](=[O:36])[NH:29][C:28]([N:37]1[CH2:38][CH2:39][CH:40]([O:43][NH:44][C:18]([C@@H:13]2[CH2:12][CH2:11][C@@H:10]3[CH2:17][N:14]2[C:15](=[O:16])[N:9]3[O:8][CH2:1][C:2]2[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=2)=[O:20])[CH2:41][CH2:42]1)=[N:27][C:26](=[O:45])[O:25][C:21]([CH3:24])([CH3:23])[CH3:22])([CH3:33])([CH3:34])[CH3:35]

Participants

6

Reactant 4

HCID 757711-HydroxybenzotriazoleHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 57389355(2S,5R)-6-(Benzyloxy)-7-oxo-1,6-diazabicyclo[3.2.1]octane-2-carboxylic acidHCID 86699595Di-tert-butyl{[4-(aminooxy)piperidin-1-yl]methylylidene}biscarbamate

Product 1

HCID 86699596Di-tert-butyl [{4-[({[(2S,5R)-6-(benzyloxy)-7-oxo-1,6-diazabicyclo[3.2.1]oct-2-yl]carbonyl}amino)oxy]piperidin-1-yl}methylylidene]biscarbamateYield 74%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent2×

Procedure

To a mixture of (2S,5R)-6-(benzyloxy)-7-oxo-1,6-diazabicyclo[3.2.1]octane-2-carboxylic acid 1 (0.200 g, 0.723 mmol, US 2005/20572 A1) in DCM (6.0 mL) was added di-tert-butyl{[4-(aminooxy)piperidin-1-yl]methylylidene}biscarbamate 65 (0.389 g, 1.086 mmol), 1-hydroxybenzotriazole (0.147 g, 1.086 mmol) and 1-ethyl-(3-dimethylaminopropyl) carbodiimide hydrochloride (0.208 g, 1.086 mmol) sequentially at room temperature. The mixture was stirred at room temperature overnight, diluted with DCM and concentrated to provide a residue which was subjected to chromatography to give 66 (0.33 g, 74%) as a white solid.

Workup

  1. concentrationconcentrated
  2. customto provide a residue which

Sources & evidence

ORD record
ord-da3048ba1b4f4ad59337f14a0e574f1b
Source dataset
uspto-grants-2014_08
Patent number
US08796257B2

Reaction notes

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