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

HRID 330946ノート

反応式

HRID 330946 の反応式
[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:24]([O:26][C:27]([CH3:30])([CH3:29])[CH3:28])=[O: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:24]([O:26][C:27]([CH3:30])([CH3:29])[CH3:28])=[O:25])=[O:20])[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1

参加物

6

反応物 4

HCID 757711-HydroxybenzotriazoleHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 12919121tert-Butyl (aminooxy)acetateHCID 57389355(2S,5R)-6-(Benzyloxy)-7-oxo-1,6-diazabicyclo[3.2.1]octane-2-carboxylic acid

生成物 1

HCID 86699610tert-Butyl [({[(2S,5R)-6-(benzyloxy)-7-oxo-1,6-diazabicyclo[3.2.1]oct-2-yl]carbonyl}amino)oxy]acetate収率 79%

試薬・触媒・溶媒 1

HCID 6344Dichloromethane溶媒

実験手順

To a solution of (2S,5R)-6-(benzyloxy)-7-oxo-1,6-diazabicyclo[3.2.1]octane-2-carboxylic acid 1 (0.20 g, 0.72 mmol) in dry DCM (20 mL) were added tert-butyl (aminooxy)acetate 88 (0.13 g, 0.86 mmol, Organic Letters, 2002, 4(6) 869-872), 1-hydroxybenzotriazole (0.15 g, 1.11 mmol) and 1-ethyl-(3-dimethylaminopropyl)carbodiimide hydrochloride (0.21 g, 1.10 mmol) at room temperature. The reaction mixture was stirred at room temperature overnight and concentrated under vacuum. The residue was purified by column chromatography to give tert-butyl [({[(2S,5R)-6-(benzyloxy)-7-oxo-1,6-diazabicyclo[3.2.1]oct-2-yl]carbonyl}amino)oxy]acetate 89 (0.23 g, 79%) as a white solid.

後処理

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

出典と根拠

ORDレコード
ord-be7762f43e3e4640a126ea82b1e1d49f
出典データセット
uspto-grants-2014_11
特許番号
US08877743B2

反応ノート

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