Potassium Carbonate → (2S)-3-(4-carbamoylphenyl)-2-[[1-cyclohexyl-2-(3-furyl)benzimidazole-5-carbonyl]amino]propanoic acid

HRID 1280076Notes

Reaction equation

HRID 1280076 reaction equation
C([O:3][C:4](=[O:38])[C@@H:5]([NH:15][C:16]([C:18]1[CH:37]=[CH:36][C:21]2[N:22]([CH:30]3[CH2:35][CH2:34][CH2:33][CH2:32][CH2:31]3)[C:23]([C:25]3[CH:29]=[CH:28][O:27][CH:26]=3)=[N:24][C:20]=2[CH:19]=1)=[O:17])[CH2:6][C:7]1[CH:12]=[CH:11][C:10]([C:13]#[N:14])=[CH:9][CH:8]=1)C.C(=O)([O-])[O-:40].[K+].[K+]>CC(C)=O.O>[C:13]([C:10]1[CH:11]=[CH:12][C:7]([CH2:6][C@H:5]([NH:15][C:16]([C:18]2[CH:37]=[CH:36][C:21]3[N:22]([CH:30]4[CH2:35][CH2:34][CH2:33][CH2:32][CH2:31]4)[C:23]([C:25]4[CH:29]=[CH:28][O:27][CH:26]=4)=[N:24][C:20]=3[CH:19]=2)=[O:17])[C:4]([OH:3])=[O:38])=[CH:8][CH:9]=1)(=[O:40])[NH2:14]

Participants

5

Reactant 2

HCID 11430Potassium CarbonateHCID 59909984(S)-3-(4-Cyanophenyl)-2-{(1-(1-cyclohexyl-2-furan-3-yl-1H-benzoimidazol-5-yl)-methanoyl]-amino}-propionic acid ethyl ester

Product 1

HCID 491242(2S)-3-(4-carbamoylphenyl)-2-[[1-cyclohexyl-2-(3-furyl)benzimidazole-5-carbonyl]amino]propanoic acid

Reagents, catalysts & solvents 2

HCID 180AcetoneSolventHCID 962WaterSolvent

Procedure

(S)-3-(4-Cyanophenyl)-2-{[1-(1-cyclohexyl-2-furan-3-yl-1H-benzoimidazol-5-yl)-methanoyl]-amino}-propionic acid ethyl ester from example 10 (0.120 g, 0.235 mmol) was dissolved in a mixture of acetone (5 mL) and water (3 mL). Urea-hydrogen peroxide complex (1.0 mmol, 0.094 g) and potassium carbonate (10 mg) were added and the mixture stirred until completion (HPLC). The reaction mixture was concentrated under reduced pressure, the residue was dissolved in DMSO (1.5 mL) and 5 N NaOH (0.2 mL) was added. After stirring for 30 min at room temperature, TFA (0.5 mL) was added and the product isolated by prep HPLC (18 mg).

Workup

  1. concentrationThe reaction mixture was concentrated under reduced pressure
  2. dissolutionthe residue was dissolved in DMSO (1.5 mL)
  3. addition5 N NaOH (0.2 mL) was added
  4. stirringAfter stirring for 30 min at room temperature
  5. additionTFA (0.5 mL) was added
  6. customthe product isolated by prep HPLC (18 mg)

Sources & evidence

ORD record
ord-49be804d53e54448846fd5ae1038376b
Source dataset
uspto-grants-2002_09
Patent number
US06448281B1

Reaction notes

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