Tetrahydrofuran → HCID 21201548, compound

HRID 1979382Notes

Reaction equation

HRID 1979382 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])[CH:23]([CH2:26][CH3:27])[CH2:24][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])[CH:23]([CH2:24][CH3:25])[CH2:26][CH3:27])[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 21201854HCID 21201854, compound

Product 1

HCID 21201548HCID 21201548, compoundYield 69.7%

Reagents, catalysts & solvents 1

HCID 887MethanolSolvent

Procedure

1-[1-(2-Toluoylmethyl)-2-oxo-5-(2-ethylbutanoyl)-8-methyl-1,3,4,5-tetrahydro-2H-1,5-benzodiazepin-3-yl]-3-(3-ethoxycarbonylphenyl)urea (510 mg) was dissolved in methanol (24 ml), aqueous lithium hydroxide monohydrate (175 mg) solution (12 ml) and tetrahydrofuran (12 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, and extracted with ethyl acetate. The organic layer was dried over anhydrous magnesium sulfate, the solvent was evaporated under reduced pressure, isopropyl ether was added to the residue for trituration, collected by filtration, to thereby obtain 339 mg of the titled compound.

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 ethyl acetate
  5. dry with materialThe organic layer was dried over anhydrous magnesium sulfate
  6. customthe solvent was evaporated under reduced pressure, isopropyl ether
  7. additionwas added to the residue for trituration
  8. filtrationcollected by filtration

Sources & evidence

ORD record
ord-559b6e3bf9754b8f99415b3c3da1bc16
Source dataset
uspto-grants-2001_05
Patent number
US06239131B1

Reaction notes

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