Tert-Butyl nitrite → N-(6-cyclopropyl-5-(6-(3,5-dimethylisoxazol-4-yl)-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-4-yl)pyridin-3-yl)acetamide

HRID 1773698Notes

Reaction equation

HRID 1773698 reaction equation
[NH2:1][C:2]1[CH:3]=[C:4]([C:11]2[C:19]3[NH:18][C:17](=[O:20])[NH:16][C:15]=3[CH:14]=[C:13]([C:21]3[C:22]([CH3:27])=[N:23][O:24][C:25]=3[CH3:26])[CH:12]=2)[C:5]([CH:8]2[CH2:10][CH2:9]2)=[N:6][CH:7]=1.N([O:30][C:31](C)(C)[CH3:32])=O>C(#N)C.CCOC(C)=O>[CH:8]1([C:5]2[N:6]=[CH:7][C:2]([NH:1][C:31](=[O:30])[CH3:32])=[CH:3][C:4]=2[C:11]2[C:19]3[NH:18][C:17](=[O:20])[NH:16][C:15]=3[CH:14]=[C:13]([C:21]3[C:22]([CH3:27])=[N:23][O:24][C:25]=3[CH3:26])[CH:12]=2)[CH2:9][CH2:10]1

Participants

5

Reactant 2

HCID 10906Tert-Butyl nitriteHCID 1176018144-(5-amino-2-cyclopropylpyridin-3-yl)-6-(3,5-dimethylisoxazol-4-yl)-1H-benzo[d]imidazol-2(3H)-one

Product 1

HCID 117601945N-(6-cyclopropyl-5-(6-(3,5-dimethylisoxazol-4-yl)-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-4-yl)pyridin-3-yl)acetamideYield 18.9%

Reagents, catalysts & solvents 2

HCID 6342AcetonitrileSolventHCID 8857Ethyl AcetateSolvent

Procedure

4-(5-Amino-2-cyclopropylpyridin-3-yl)-6-(3,5-dimethylisoxazol-4-yl)-1H-benzo[d]imidazol-2(3H)-one (75 mg, 0.21 mmol) was dissolved in acetonitrile (2 mL), at room temperature added tert-butyl nitrite (32 mg, 0.31 mmol) and CuBr2 (56 mg, 0.25 mmol), stirred at room temperature for 1 h. The reaction mixture was diluted with EtOAc, washed with brine, evaporated organic solvent, purified with Prep HPLC. (0-100% CH3CN/H2O) to afford 16 mg of N-(6-cyclopropyl-5-(6-(3,5-dimethylisoxazol-4-yl)-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-4-yl)pyridin-3-yl)acetamide.

Workup

  1. washwashed with brine
  2. customevaporated organic solvent
  3. custompurified with Prep HPLC

Sources & evidence

ORD record
ord-dce4709c61fa4f9e93cc0ebd0fe5ef14
Source dataset
uspto-grants-2016_02
Patent number
US09255089B2

Reaction notes

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