Water → Methyl 4-[((3-chloro-2-methylphenyl)-{2-[(4-methoxybenzyl)amino]-2-oxoethyl}amino)sulfonyl]benzoate

HRID 1009487Notes

Reaction equation

HRID 1009487 reaction equation
[Cl:1][C:2]1[C:3]([CH3:22])=[C:4]([NH:8][S:9]([C:12]2[CH:21]=[CH:20][C:15]([C:16]([O:18][CH3:19])=[O:17])=[CH:14][CH:13]=2)(=[O:11])=[O:10])[CH:5]=[CH:6][CH:7]=1.Br[CH2:24][C:25]([NH:27][CH2:28][C:29]1[CH:34]=[CH:33][C:32]([O:35][CH3:36])=[CH:31][CH:30]=1)=[O:26].C(=O)([O-])[O-].[K+].[K+].O>CN(C=O)C>[Cl:1][C:2]1[C:3]([CH3:22])=[C:4]([N:8]([CH2:24][C:25]([NH:27][CH2:28][C:29]2[CH:30]=[CH:31][C:32]([O:35][CH3:36])=[CH:33][CH:34]=2)=[O:26])[S:9]([C:12]2[CH:21]=[CH:20][C:15]([C:16]([O:18][CH3:19])=[O:17])=[CH:14][CH:13]=2)(=[O:11])=[O:10])[CH:5]=[CH:6][CH:7]=1

Participants

6

Reactant 4

HCID 962WaterHCID 11430Potassium CarbonateHCID 26486967Methyl 4-{[(3-chloro-2-methylphenyl)amino]sulfonyl}benzoateHCID 467366912-Bromo-N-(4-methoxybenzyl)acetamide

Product 1

HCID 58009446Methyl 4-[((3-chloro-2-methylphenyl)-{2-[(4-methoxybenzyl)amino]-2-oxoethyl}amino)sulfonyl]benzoateYield 80.7%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

220 mg of methyl 4-{[(3-chloro-2-methylphenyl)amino]sulfonyl}benzoate was dissolved in 1.10 mL of DMF, and 168 mg of 2-bromo-N-(4-methoxybenzyl)acetamide and 100 mg of potassium carbonate were added thereto, followed by stirring at room temperature for 7 hours. To the reaction liquid was added water, followed by extraction with ethyl acetate, and the organic layer was washed with brine, and then dried over anhydrous sodium sulfate. The solvent was evaporated under reduced pressure, and the obtained residue was purified by silica gel column chromatography (hexane:ethyl acetate=7:3 to 4:6) to obtain 270 mg of methyl 4-[((3-chloro-2-methylphenyl)-{2-[(4-methoxybenzyl)amino]-2-oxoethyl}amino)sulfonyl]benzoate. The obtained methyl 4-[((3-chloro-2-methylphenyl)-{2-[(4-methoxybenzyl)amino]-2-oxoethyl}amino)sulfonyl]benzoate was dissolved in 2.00 mL of methanol and 1.50 mL of THF, and 1.05 mL of a 1 M aqueous sodium hydroxide solution was added thereto, followed by stirring at room temperature for 2 days. The reaction liquid was acidified by addition of 1 M hydrochloric acid, and then extracted with a mixed solvent of chloroform/methanol (5/1), and the organic layer was dried over anhydrous magnesium sulfate. The solvent was evaporated under reduced pressure, and the obtained residue was purified by silica gel chromatography (chloroform:methanol=100:0 to 90:10) to obtain 204 mg of 4-[((3-chloro-2-methylphenyl) {2-[(4-methoxybenzyl)amino]-2-oxoethyl}amino)sulfonyl]benzoic acid.

Workup

  1. customTo the reaction liquid
  2. extractionfollowed by extraction with ethyl acetate
  3. washthe organic layer was washed with brine
  4. dry with materialdried over anhydrous sodium sulfate
  5. customThe solvent was evaporated under reduced pressure
  6. customthe obtained residue was purified by silica gel column chromatography (hexane:ethyl acetate=7:3 to 4:6)

Sources & evidence

ORD record
ord-e13ae3e0ee734eabbe7056a74eb7d2ac
Source dataset
uspto-grants-2011_07
Patent number
US07973078B2

Reaction notes

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