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Water → 1-[1-(2-Toluoylmethyl)-2-oxo-5-(2-methylpentanoyl)-8-methyl-1,3,4,5-tetrahydro-2H-1,5-benzodiazepin-3-yl]-3-(3-ethoxycarbonylphenyl)urea

HRID 1979383
Notes
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Reaction equation

HRID 1979383 reaction equation
[C:1]1([CH3:38])[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[NH:14][CH2:13][CH:12]([NH:22][C:23]([NH:25][C:26]3[CH:31]=[CH:30][CH:29]=[C:28]([C:32]([O:34][CH2:35][CH3:36])=[O:33])[CH:27]=3)=[O:24])[C:11]2=[O:37])=[O:8])=[CH:3][CH:4]=[CH:5][CH:6]=1.[CH3:39][CH:40]([CH2:44][CH2:45][CH3:46])[C:41](Cl)=[O:42].N1C=CC=CC=1.O>ClCCCl.C(OCC)(=O)C>[C:1]1([CH3:38])[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:41](=[O:42])[CH:40]([CH3:39])[CH2:44][CH2:45][CH3:46])[CH2:13][CH:12]([NH:22][C:23]([NH:25][C:26]3[CH:31]=[CH:30][CH:29]=[C:28]([C:32]([O:34][CH2:35][CH3:36])=[O:33])[CH:27]=3)=[O:24])[C:11]2=[O:37])=[O:8])=[CH:3][CH:4]=[CH:5][CH:6]=1
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

7

Reactant 4

HCID 962WaterHCID 1049PyridineHCID 1073852-Methylvaleryl chlorideHCID 212016301-[1-(2-toluoylmethyl)-2-oxo-8-methyl-1,3,4,5-tetrahydro-2H-1,5-benzodiazepin-3-yl]-3-(3-ethoxycarbonylphenyl)urea

Product 1

HCID 212017751-[1-(2-Toluoylmethyl)-2-oxo-5-(2-methylpentanoyl)-8-methyl-1,3,4,5-tetrahydro-2H-1,5-benzodiazepin-3-yl]-3-(3-ethoxycarbonylphenyl)urea
Yield 95.7%

Reagents, catalysts & solvents 2

HCID 111,2-DichloroethaneSolventHCID 8857Ethyl AcetateSolvent

Procedure

1-[1-(2-Toluoylmethyl)-2-oxo-8-methyl-1,3,4,5-tetrahydro-2H-1,5-benzodiazepin-3-yl]-3-(3-ethoxycarbonylphenyl)urea (500 mg) obtained from Step 1of Example 93 was suspended in 1,2-dichloroethane (10 ml), 2-methyl-n-pentanoyl chloride (144 mg) and pyridine (87 μl) were added, the mixture was refluxed for 3 hours. Water (100 ml) and ethyl acetate (100 ml) were added to the reaction mixture, separated, the organic layer was washed with 1N hydrochloric acid, and dried over anhydrous sodium sulfate. The solvent was evaporated under reduced pressure, the residue was purified by silica gel column chromatography(n-hexane:ethyl acetate=2:1), to thereby obtain 569 mg of the titled compound (Yield: 95.7%).

Workup

  1. temperaturethe mixture was refluxed for 3 hours
  2. customseparated
  3. washthe organic layer was washed with 1N hydrochloric acid
  4. dry with materialdried over anhydrous sodium sulfate
  5. customThe solvent was evaporated under reduced pressure
  6. customthe residue was purified by silica gel column chromatography(n-hexane:ethyl acetate=2:1)

Sources & evidence

ORD record
ord-e53cfb073b9d419d82ad71a6f31910ee
Source dataset
uspto-grants-2001_05
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US06239131B1

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes