1-Hydroxybenzotriazole → (2S,5R)-6-(Benzyloxy)-N-(cyclohexyloxy)-7-oxo-1,6-diazabicyclo[3.2.1]octane-2-carboxamide

HRID 330904Notes

Reaction equation

HRID 330904 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.[NH2:21][O:22][CH:23]1[CH2:28][CH2:27][CH2:26][CH2:25][CH2:24]1.ON1C2C=CC=CC=2N=N1.Cl.C(N=C=NCCCN(C)C)C>C(Cl)Cl>[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]([NH:21][O:22][CH:23]1[CH2:28][CH2:27][CH2:26][CH2:25][CH2:24]1)=[O:20])[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1

Participants

6

Reactant 4

HCID 757711-HydroxybenzotriazoleHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 10820741O-cyclohexylhydroxylamineHCID 57389355(2S,5R)-6-(Benzyloxy)-7-oxo-1,6-diazabicyclo[3.2.1]octane-2-carboxylic acid

Product 1

HCID 86693929(2S,5R)-6-(Benzyloxy)-N-(cyclohexyloxy)-7-oxo-1,6-diazabicyclo[3.2.1]octane-2-carboxamideYield 89.5%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a solution of (2S,5R)-6-(benzyloxy)-7-oxo-1,6-diazabicyclo[3.2.1]octane-2-carboxylic acid 1 (0.2 g, 0.72 mmol) in dry DCM (20 mL) were added (aminooxy)cyclohexane 21 (0.1 g, 0.86 mmol, US 2008/146625 A1), 1-hydroxybenzotriazole (0.14 g, 1.1 mmol) and 1-ethyl-(3-dimethylaminopropyl)carbodiimide hydrochloride (0.2 g, 1.1 mmol) at room temperature. The reaction mixture was stirred at room temperature overnight, and then concentrated under vacuum. The residue was purified by column chromatography to give (2S,5R)-6-(benzyloxy)-N-(cyclohexyloxy)-7-oxo-1,6-diazabicyclo[3.2.1]octane-2-carboxamide 22 (0.24 g, 89.5%) as a clear thick oil.

Workup

  1. concentrationconcentrated under vacuum
  2. customThe residue was purified by column chromatography

Sources & evidence

ORD record
ord-f833809d35a54f959bf2d7c14cb19e26
Source dataset
uspto-grants-2014_11
Patent number
US08877743B2

Reaction notes

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