Water → N-[2-chloro-4-[[[(3-hydroxyphenyl)methyl]amino]carbonyl]benzoyl]-3-(thiophene-2-carbonyl)amino-L-alanine

HRID 1726773Notes

Reaction equation

HRID 1726773 reaction equation
[Cl:1][C:2]1[CH:24]=[C:23]([C:25]([NH:27][CH2:28][C:29]2[CH:34]=[CH:33][CH:32]=[C:31]([OH:35])[CH:30]=2)=[O:26])[CH:22]=[CH:21][C:3]=1[C:4]([NH:6][C@H:7]([C:17]([O:19]C)=[O:18])[CH2:8][NH:9][C:10]([C:12]1[S:13][CH:14]=[CH:15][CH:16]=1)=[O:11])=[O:5].O.[OH-].[Li+].O>O1CCCC1.CO>[Cl:1][C:2]1[CH:24]=[C:23]([C:25]([NH:27][CH2:28][C:29]2[CH:34]=[CH:33][CH:32]=[C:31]([OH:35])[CH:30]=2)=[O:26])[CH:22]=[CH:21][C:3]=1[C:4]([NH:6][C@H:7]([C:17]([OH:19])=[O:18])[CH2:8][NH:9][C:10]([C:12]1[S:13][CH:14]=[CH:15][CH:16]=1)=[O:11])=[O:5]

Participants

6

Reactant 3

HCID 962WaterHCID 168937Lithium hydroxide, monohydrateHCID 131723032N-[2-chloro-4-[[[(3-hydroxyphenyl)methyl]amino]carbonyl]benzoyl]-3-(thiophene-2-carbonyl)amino-L-alanine, methyl ester

Product 1

HCID 60115134N-[2-chloro-4-[[[(3-hydroxyphenyl)methyl]amino]carbonyl]benzoyl]-3-(thiophene-2-carbonyl)amino-L-alanineYield 96%

Reagents, catalysts & solvents 2

HCID 887MethanolSolventHCID 8028TetrahydrofuranSolvent

Procedure

A solution of N-[2-chloro-4-[[[(3-hydroxyphenyl)methyl]amino]carbonyl]benzoyl]-3-(thiophene-2-carbonyl)amino-L-alanine, methyl ester (8.30 g, 16.1 mmol) and lithium hydroxide monohydrate (2.05 g, 48.9 mmol) in tetrahydrofuran (60 mL), methanol (20 mL), and water (40 mL) was stirred at room temperature overnight. The solution was concentrated to remove tetrahydrofuran and methanol, and ethyl acetate (200 mL) and 1 M HCl (100 mL) were added. The aqueous layer was extracted with ethyl acetate (100 mL) and the combined organic layers were washed with brine (200 mL), dried (MgSO4), filtered, and evaporated to give N-[2-chloro-4-[[[(3-hydroxyphenyl)methyl]amino]carbonyl]benzoyl]-3-(thiophene-2-carbonyl)amino-L-alanine (7.75 g, 96%) as a white solid.

Workup

  1. concentrationThe solution was concentrated
  2. customto remove tetrahydrofuran and methanol, and ethyl acetate (200 mL) and 1 M HCl (100 mL)
  3. additionwere added
  4. extractionThe aqueous layer was extracted with ethyl acetate (100 mL)
  5. washthe combined organic layers were washed with brine (200 mL)
  6. dry with materialdried (MgSO4)
  7. filtrationfiltered
  8. customevaporated

Sources & evidence

ORD record
ord-923832fc36ea4b6a9f33d1a007bd248f
Source dataset
uspto-grants-2009_02
Patent number
US07491741B2

Reaction notes

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