1,1'-Carbonyldiimidazole → Benzyl((3S,4R)-1-(2,4-dimethoxybenzyl)-2-oxo-4-((2-oxooxazolidin-3-yl)methyl)azetidin-3-yl)carbamate

HRID 708314Notes

Reaction equation

HRID 708314 reaction equation
[CH3:1][O:2][C:3]1[CH:30]=[C:29]([O:31][CH3:32])[CH:28]=[CH:27][C:4]=1[CH2:5][N:6]1[C:9](=[O:10])[C@@H:8]([NH:11][C:12](=[O:21])[O:13][CH2:14][C:15]2[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=2)[C@H:7]1[CH2:22][NH:23][CH2:24][CH2:25][OH:26].C1N=CN([C:38](N2C=NC=C2)=[O:39])C=1>C(Cl)(Cl)Cl>[CH3:1][O:2][C:3]1[CH:30]=[C:29]([O:31][CH3:32])[CH:28]=[CH:27][C:4]=1[CH2:5][N:6]1[C@H:7]([CH2:22][N:23]2[CH2:24][CH2:25][O:26][C:38]2=[O:39])[C@H:8]([NH:11][C:12](=[O:21])[O:13][CH2:14][C:15]2[CH:16]=[CH:17][CH:18]=[CH:19][CH:20]=2)[C:9]1=[O:10]

Participants

4

Reactant 2

HCID 682631,1'-CarbonyldiimidazoleHCID 118411328Benzyl ((2R,3S)-1-(2,4-dimethoxybenzyl)-2-(((2-hydroxyethyl)amino)methyl)-4-oxoazetidin-3-yl)carbamate

Product 1

HCID 118411331Benzyl((3S,4R)-1-(2,4-dimethoxybenzyl)-2-oxo-4-((2-oxooxazolidin-3-yl)methyl)azetidin-3-yl)carbamateYield 81.1%

Reagents, catalysts & solvents 1

HCID 6212ChloroformSolvent

Procedure

To a solution of benzyl ((2R,3S)-1-(2,4-dimethoxybenzyl)-2-(((2-hydroxyethyl)amino)methyl)-4-oxoazetidin-3-yl)carbamate (4.47 g, 10.08 mmol) in chloroform (50 ml) was added CDI (4.90 g, 30.2 mmol). After stirring at rt for 30 min it was concentrated in vacuo. The crude residue was purified via silica gel chromatography (MeOH-DCM, 0-5%), affording the title compound (3.84 g, 81%) as a white foam. LCMS: Rt=0.76 min, m/z=470.1 (M+1).

Workup

  1. concentrationwas concentrated in vacuo
  2. customThe crude residue was purified via silica gel chromatography (MeOH-DCM, 0-5%)

Sources & evidence

ORD record
ord-02d0b21945644ff4b1b9317e2e773f47
Source dataset
uspto-grants-2015_11
Patent number
US09174978B2

Reaction notes

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