ethyl 2-(1H-1,3-benzodiazol-2-yl)acetate → HCID 178507209, compound

HRID 722167Notes

Reaction equation

HRID 722167 reaction equation
[Li+].C[Si]([N-][Si](C)(C)C)(C)C.[NH:11]1[C:15]2[CH:16]=[CH:17][CH:18]=[CH:19][C:14]=2[N:13]=[C:12]1[CH2:20][C:21]([O:23]CC)=O.[NH2:26][C:27]1[NH:31][CH:30]=[N:29][C:28]=1[C:32]#[N:33]>C1COCC1>[NH2:33][C:32]1[C:28]2[N:29]=[CH:30][NH:31][C:27]=2[NH:26][C:21](=[O:23])[C:20]=1[C:12]1[NH:11][C:15]2[CH:16]=[CH:17][CH:18]=[CH:19][C:14]=2[N:13]=1

Participants

5

Reactant 3

HCID 308071ethyl 2-(1H-1,3-benzodiazol-2-yl)acetateHCID 2733832Lithium HexamethyldisilazideHCID 178510601HCID 178510601, compound

Product 1

HCID 178507209HCID 178507209, compound

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

LiHMDS (4.4 eq) was added to ethyl 1H-benzimidazol-2-ylacetate (1.0 eq) and 5-amino-1H-imidazole-4-carbonitrile (1.0 eq) in THF at 0° C. After 1 hour, the resulting mixture was warmed to room temperature and then stirred overnight. The mixture was quenched with an aqueous saturated NH4Cl solution and extracted with EtOAc. The organic layer was washed with H2O and brine, dried over Na2SO4, filtered, and concentrated in vacuo to yield a brown solid. LC/MS m/z 267.1 (MH+), Rt 1.47 minutes.

Workup

  1. customThe mixture was quenched with an aqueous saturated NH4Cl solution
  2. extractionextracted with EtOAc
  3. washThe organic layer was washed with H2O and brine
  4. dry with materialdried over Na2SO4
  5. filtrationfiltered
  6. concentrationconcentrated in vacuo
  7. customto yield a brown solid

Sources & evidence

ORD record
ord-3744f897373b40338e2c14e82e03bae8
Source dataset
uspto-grants-2006_11
Patent number
US07138409B2

Reaction notes

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