1-Hydroxybenzotriazole → tert-Butyl {(2S)-1-[({[(2S,5R)-6-(benzyloxy)-7-oxo-1,6-diazabicyclo[3.2.1]oct-2-yl]carbonyl}amino)oxy]propan-2-yl}carbamate

HRID 330927Notes

Reaction equation

HRID 330927 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][CH2:23][C@@H:24]([NH:26][C:27](=[O:33])[O:28][C:29]([CH3:32])([CH3:31])[CH3:30])[CH3:25].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][CH2:23][C@@H:24]([NH:26][C:27](=[O:33])[O:28][C:29]([CH3:32])([CH3:31])[CH3:30])[CH3:25])=[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 39238211tert-Butyl (S)-(1-(aminooxy)propan-2-yl)carbamateHCID 57389355(2S,5R)-6-(Benzyloxy)-7-oxo-1,6-diazabicyclo[3.2.1]octane-2-carboxylic acid

Product 1

HCID 72549870tert-Butyl {(2S)-1-[({[(2S,5R)-6-(benzyloxy)-7-oxo-1,6-diazabicyclo[3.2.1]oct-2-yl]carbonyl}amino)oxy]propan-2-yl}carbamateYield 97.3%

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 (0.150 g, 0.543 mmol) in DCM (15 mL) were added tert-butyl [(1S)-2-(aminooxy)-1-methylethyl]carbamate 59 (0.176 g, 0.923 mmol), 1-hydroxybenzotriazole (0.110 g, 0.814 mmol) and 1-ethyl-(3-dimethylaminopropyl)carbodiimide hydrochloride (0.156 g, 0.814 mmol) sequentially at room temperature. The mixture was stirred at room temperature for 18 h, diluted with DCM, washed with water and brine, dried over sodium sulfate and concentrated to provide a residue which was subjected to chromatography to give 60 (0.237 g, 97%) as a white solid.

Workup

  1. washwashed with water and brine
  2. dry with materialdried over sodium sulfate
  3. concentrationconcentrated
  4. customto provide a residue which

Sources & evidence

ORD record
ord-7e476697e1384871a7c0b8d34037a1dc
Source dataset
uspto-grants-2014_11
Patent number
US08877743B2

Reaction notes

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