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Water → 6-[10-Chloro-7-(1-ethylpropyl)-2,3,4,5-tetrahydro-1H-[1,3]diazepino[1,2-a]benzimidazol-1-yl]-5-methylpyridine-3-carboxamide

HRID 1628874
Notes
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Reaction equation

HRID 1628874 reaction equation
[Cl:1][C:2]1[C:10]2[N:9]=[C:8]3[N:11]([C:16]4[N:21]=[CH:20][C:19]([C:22]#[N:23])=[CH:18][C:17]=4[CH3:24])[CH2:12][CH2:13][CH2:14][CH2:15][N:7]3[C:6]=2[C:5]([CH:25]([CH2:28][CH3:29])[CH2:26][CH3:27])=[CH:4][CH:3]=1.[OH-:30].[K+].O>C(O)(C)(C)C>[Cl:1][C:2]1[C:10]2[N:9]=[C:8]3[N:11]([C:16]4[N:21]=[CH:20][C:19]([C:22]([NH2:23])=[O:30])=[CH:18][C:17]=4[CH3:24])[CH2:12][CH2:13][CH2:14][CH2:15][N:7]3[C:6]=2[C:5]([CH:25]([CH2:28][CH3:29])[CH2:26][CH3:27])=[CH:4][CH:3]=1
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 3

HCID 962WaterHCID 14797Potassium HydroxideHCID 577859886-[10-Chloro-7-(1-ethylpropyl)-2,3,4,5-tetrahydro-1H-[1,3]diazepino[1,2-a]benzimidazol-1-yl]-5-methylpyridine-3-carbonitrile

Product 1

HCID 577859356-[10-Chloro-7-(1-ethylpropyl)-2,3,4,5-tetrahydro-1H-[1,3]diazepino[1,2-a]benzimidazol-1-yl]-5-methylpyridine-3-carboxamideYield 67.1%

Reagents, catalysts & solvents 1

HCID 6386
tert-Butanol
Solvent

Conditions

Temperature
800 °C

Procedure

A mixture of 6-[10-chloro-7-(1-ethylpropyl)-2,3,4,5-tetrahydro-1H-[1,3]diazepino[1,2-a]benzimidazol-1-yl]-5-methylpyridine-3-carbonitrile (100 mg, 0.245 mmol) and potassium hydroxide (41 mg, 0.735 mmol) in tert-butanol (2 mL) was stirred at 800° C. for 2 hr. After cooling, water was added and the mixture was extracted with ethyl acetate. Organic layer was washed with brine, dried over anhydrous sodium sulfate and concentrated in vacuo. The residue was recrystallized from ethyl acetate/isopropyl ether to afford the title compound (70 mg, 67%) as a colorless solid.

Workup

  1. temperatureAfter cooling
  2. extractionthe mixture was extracted with ethyl acetate
  3. washOrganic layer was washed with brine
  4. dry with materialdried over anhydrous sodium sulfate
  5. concentrationconcentrated in vacuo
  6. customThe residue was recrystallized from ethyl acetate/isopropyl ether

Sources & evidence

ORD record
ord-ee9c43ebf98841bba8f5d37bfc7246c1
Source dataset
uspto-grants-2014_07
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US08785460B2

Reaction notes

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On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes