Ethyl 3-aminobenzoate → Ethyl 3-[(2-acetylthiomethyl-3-phenylpropionyl)amino]benzoate

HRID 1646299Notes

Reaction equation

HRID 1646299 reaction equation
[C:1]([S:4][CH2:5][CH:6]([CH2:10][C:11]1[CH:16]=[CH:15][CH:14]=[CH:13][CH:12]=1)[C:7]([OH:9])=O)(=[O:3])[CH3:2].[NH2:17][C:18]1[CH:19]=[C:20]([CH:26]=[CH:27][CH:28]=1)[C:21]([O:23][CH2:24][CH3:25])=[O:22].CCN=C=NCCCN(C)C.Cl>ClCCl.CN(C)C1C=CN=CC=1>[C:1]([S:4][CH2:5][CH:6]([CH2:10][C:11]1[CH:16]=[CH:15][CH:14]=[CH:13][CH:12]=1)[C:7]([NH:17][C:18]1[CH:19]=[C:20]([CH:26]=[CH:27][CH:28]=1)[C:21]([O:23][CH2:24][CH3:25])=[O:22])=[O:9])(=[O:3])[CH3:2]

Participants

6

Reactant 3

HCID 11400Ethyl 3-aminobenzoateHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 99917962-[(Acetylthio)methyl]-3-phenylpropionic Acid

Product 1

HCID 15670143Ethyl 3-[(2-acetylthiomethyl-3-phenylpropionyl)amino]benzoateYield 67.5%

Reagents, catalysts & solvents 2

HCID 142844-(Dimethylamino)pyridineCatalystHCID 6344DichloromethaneSolvent

Procedure

2-Acetylthiomethyl-3-phenylpropionic acid (11.9 g) and ethyl 3-aminobenzoate (8.26 g) are dissolved in dichloromethane (150 ml), and thereto are added 4-dimethylaminopyridine (0.61 g) and EDC·HCl (10.54 g), and the mixture is stirred at room temperature overnight. The reaction mixture is washed with saturated aqueous citric acid solution, saturated aqueous sodium chloride solution and saturated aqueous sodium hydrogen carbonate solution and saturated aqueous sodium chloride solution in this order, dried over anhydrous magnesium sulfate, and the solvent is distilled off under reduced pressure. The residue is washed with diethyl ether to give the title compound (13 g).

Workup

  1. washThe reaction mixture is washed with saturated aqueous citric acid solution, saturated aqueous sodium chloride solution and saturated aqueous sodium hydrogen carbonate solution and saturated aqueous sodium chloride solution in this order
  2. dry with materialdried over anhydrous magnesium sulfate
  3. distillationthe solvent is distilled off under reduced pressure
  4. washThe residue is washed with diethyl ether

Sources & evidence

ORD record
ord-1a3ad8655b7541a3940e4b6cf877d0d7
Source dataset
uspto-grants-1993_01
Patent number
US05179125

Reaction notes

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