Tetrahydrofuran → 3-[3-[1-(2-toluoylmethyl)-2-oxo-5-(3, 3-dimethylbutanoyl)-8-methyl-1,3,4,5-tetrahydro-2H-1,5-benzodiazepin-3-yl]ureido]benzoic acid

HRID 1979403Notes

Reaction equation

HRID 1979403 reaction equation
[C:1]1([CH3:45])[C:2]([C:7]([CH2:9][N:10]2[C:16]3[CH:17]=[C:18]([CH3:21])[CH:19]=[CH:20][C:15]=3[N:14]([C:22](=[O:28])[CH2:23][C:24]([CH3:27])([CH3:26])[CH3:25])[CH2:13][CH:12]([NH:29][C:30]([NH:32][C:33]3[CH:38]=[CH:37][CH:36]=[C:35]([C:39]([O:41]CC)=[O:40])[CH:34]=3)=[O:31])[C:11]2=[O:44])=[O:8])=[CH:3][CH:4]=[CH:5][CH:6]=1.O.[OH-].[Li+].O1CCCC1>CO>[C:1]1([CH3:45])[C:2]([C:7]([CH2:9][N:10]2[C:16]3[CH:17]=[C:18]([CH3:21])[CH:19]=[CH:20][C:15]=3[N:14]([C:22](=[O:28])[CH2:23][C:24]([CH3:25])([CH3:27])[CH3:26])[CH2:13][CH:12]([NH:29][C:30](=[O:31])[NH:32][C:33]3[CH:34]=[C:35]([CH:36]=[CH:37][CH:38]=3)[C:39]([OH:41])=[O:40])[C:11]2=[O:44])=[O:8])=[CH:3][CH:4]=[CH:5][CH:6]=1

Participants

5

Reactant 3

HCID 8028TetrahydrofuranHCID 168937Lithium hydroxide, monohydrateHCID 212015771-[1-(2-toluoylmethyl)-2-oxo-5-(3,3-dimethylbutanoyl)-8-methyl-1,3,4,5-tetrahydro-2H-1,5-benzodiazepin-3-yl]-3-(3-ethoxycarbonylphenyl)urea

Product 1

HCID 212016913-[3-[1-(2-toluoylmethyl)-2-oxo-5-(3, 3-dimethylbutanoyl)-8-methyl-1,3,4,5-tetrahydro-2H-1,5-benzodiazepin-3-yl]ureido]benzoic acidYield 77.1%

Reagents, catalysts & solvents 1

HCID 887MethanolSolvent

Procedure

1-[1-(2-toluoylmethyl)-2-oxo-5-(3,3-dimethylbutanoyl)-8-methyl-1,3,4,5-tetrahydro-2H-1,5-benzodiazepin-3-yl]-3-(3-ethoxycarbonylphenyl)urea (442 mg) was dissolved in methanol (20 ml), aqueous lithium hydroxide monohydrate (151 mg) solution (10 ml) and tetrahydrofuran (10 ml) were added, and the mixture was refluxed for one hour. The reaction mixture was concentrated under reduced pressure, 1N hydrochloric acid was added to the residue, extracted with methylene chloride. The solvent was evaporated under reduced pressure, diisopropyl ether was added to the residue for trituration, collected by filtration, to thereby obtain 324 mg of the titled compound as colorless powder (Yield: 77.1%).

Workup

  1. temperaturethe mixture was refluxed for one hour
  2. concentrationThe reaction mixture was concentrated under reduced pressure, 1N hydrochloric acid
  3. additionwas added to the residue
  4. extractionextracted with methylene chloride
  5. customThe solvent was evaporated under reduced pressure, diisopropyl ether
  6. additionwas added to the residue for trituration
  7. filtrationcollected by filtration

Sources & evidence

ORD record
ord-f38bf85ee8634c3cb454353f5205f4b4
Source dataset
uspto-grants-2001_05
Patent number
US06239131B1

Reaction notes

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