Sodium Iodide → 1-Benzyl-5-bromo-2-{[methoxycarbonylmethyl-(toluene-4-sulfonyl)-amino]-methyl}-6-oxo-1,6-dihydro-pyridine-3-carboxylic acid methyl ester

HRID 1410658Notes

Reaction equation

HRID 1410658 reaction equation
[CH3:1][O:2][C:3]([C:5]1[CH:10]=[C:9]([Br:11])[C:8](=[O:12])[N:7]([CH2:13][C:14]2[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=2)[C:6]=1[CH2:20]Br)=[O:4].[CH3:22][O:23][C:24](=[O:37])[CH2:25][NH:26][S:27]([C:30]1[CH:35]=[CH:34][C:33]([CH3:36])=[CH:32][CH:31]=1)(=[O:29])=[O:28].[I-].[Na+].C(=O)([O-])[O-].[K+].[K+]>CN(C=O)C.[Cl-].[Na+].O>[CH3:1][O:2][C:3]([C:5]1[CH:10]=[C:9]([Br:11])[C:8](=[O:12])[N:7]([CH2:13][C:14]2[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=2)[C:6]=1[CH2:20][N:26]([CH2:25][C:24]([O:23][CH3:22])=[O:37])[S:27]([C:30]1[CH:31]=[CH:32][C:33]([CH3:36])=[CH:34][CH:35]=1)(=[O:29])=[O:28])=[O:4]

Participants

7

Reactant 4

HCID 5238Sodium IodideHCID 11430Potassium CarbonateHCID 562880Methyl 2-(4-methylphenylsulfonamido)acetateHCID 682975521-Benzyl-5-bromo-2-bromomethyl-6-oxo-1,6-dihydro-pyridine-3-carboxylic acid methyl ester

Product 1

HCID 682975931-Benzyl-5-bromo-2-{[methoxycarbonylmethyl-(toluene-4-sulfonyl)-amino]-methyl}-6-oxo-1,6-dihydro-pyridine-3-carboxylic acid methyl esterYield 52.6%

Reagents, catalysts & solvents 2

HCID 6228DimethylformamideSolventHCID 57417360Sodium chloride; waterSolvent

Procedure

A mixture of 1-benzyl-5-bromo-2-bromomethyl-6-oxo-1,6-dihydro-pyridine-3-carboxylic acid methyl ester (2.87 g, 6.92 mmol), (toluene-4-sulfonylamino)-acetic acid methyl ester (1.68 g, 6.92 mmol), sodium iodide (1.96 g, 13.8 mmol) and potassium carbonate (1.91 g, 13.8 mmol) in DMF (50 mL) was stirred at r.t. for 3 days. Brine (50 mL) was added and the mixture was extracted several times with EtOAc. The organic layers were combined, washed with water, and dried over MgSO4. After the solvent was evaporated in vacuo, the crude product was chromatographed (0-40% EtOAc/hexanes) to give 2.1 g of the title compound as a yellow oil. MS: (+) m/z 576.95, 578.89 (M+1, 79/81Br).

Workup

  1. extractionthe mixture was extracted several times with EtOAc
  2. washwashed with water
  3. dry with materialdried over MgSO4
  4. customAfter the solvent was evaporated in vacuo
  5. customthe crude product was chromatographed (0-40% EtOAc/hexanes)

Sources & evidence

ORD record
ord-1b8a757e82c24004904cdecfde21d401
Source dataset
uspto-grants-2014_12
Patent number
US08921389B2

Reaction notes

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