Phenylacetic Acid → N-benzyl-2-(5-benzyl-1,2,4-oxadiazol-3-yl)-4-methylthiazole-5-carboxamide

HRID 2381869Notes

Reaction equation

HRID 2381869 reaction equation
[C:1]1([CH2:7][C:8]([OH:10])=O)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.C(N1C=CN=C1)(N1C=CN=C1)=O.[CH2:23]([NH:30][C:31]([C:33]1[S:37][C:36]([C:38](=[N:40]O)[NH2:39])=[N:35][C:34]=1[CH3:42])=[O:32])[C:24]1[CH:29]=[CH:28][CH:27]=[CH:26][CH:25]=1>CN(C)C=O.ClCCl>[CH2:23]([NH:30][C:31]([C:33]1[S:37][C:36]([C:38]2[N:40]=[C:8]([CH2:7][C:1]3[CH:2]=[CH:3][CH:4]=[CH:5][CH:6]=3)[O:10][N:39]=2)=[N:35][C:34]=1[CH3:42])=[O:32])[C:24]1[CH:29]=[CH:28][CH:27]=[CH:26][CH:25]=1

Participants

6

Reactant 3

HCID 999Phenylacetic AcidHCID 682631,1'-CarbonyldiimidazoleHCID 136404881N-benzyl-2-(N'-hydroxycarbamimidoyl)-4-methylthiazole-5-carboxamide

Product 1

HCID 59179717N-benzyl-2-(5-benzyl-1,2,4-oxadiazol-3-yl)-4-methylthiazole-5-carboxamideYield 6.9%

Reagents, catalysts & solvents 2

HCID 6228DimethylformamideSolventHCID 6344DichloromethaneSolvent

Procedure

To a solution of phenylacetic acid (0.05 g, 0.37 mmol) in N,N-dimethylformamide (2 mL) was added 1,1′-carbonyldiimidazole (0.14 g, 0.83 mmol). The reaction mixture was stirred at ambient temperature for 1 hour, and N-benzyl-2-(N′-hydroxy-carbamimidoyl)-4-methylthiazole-5-carboxamide (0.12 g, 0.41 mmol) was added. The reaction mixture was stirred for 17 hours, diluted with dichloromethane, washed with water and brine. The organic solution was dried over anhydrous sodium sulfate, filtered and concentrated in vacuo. The residue was purified by column chromatography to afford the title compound as a white powder (0.01 g, 6%): mp 124-125° C.; 1H NMR (300 MHz, CDCl3) δ 7.45-7.25 (m, 10H), 6.16 (t, J=5.6 Hz, 1H), 4.60 (d, J=5.6 Hz, 2H), 4.29 (s, 2H), 2.76 (s, 3H); MS (ES+) m/z 391.5 (M+1).

Workup

  1. stirringThe reaction mixture was stirred for 17 hours
  2. washwashed with water and brine
  3. dry with materialThe organic solution was dried over anhydrous sodium sulfate
  4. filtrationfiltered
  5. concentrationconcentrated in vacuo
  6. customThe residue was purified by column chromatography

Sources & evidence

ORD record
ord-618c7a85116e4dff9ed9c208b974e253
Source dataset
uspto-grants-2012_09
Patent number
US08258160B2

Reaction notes

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