Dimethylformamide dimethyl acetal → 4-[5-(2-Methylthiopyrimidin-4-yl)-1-methyl-4-(3-trifluoromethylphenyl)-1H-imidazol-2-yl]-piperidine-1-carboxylic acid benzyl ester

HRID 342693Notes

Reaction equation

HRID 342693 reaction equation
[CH2:1]([O:8][C:9]([N:11]1[CH2:16][CH2:15][CH:14]([C:17]2[NH:18][C:19]([C:32]3[CH:37]=[CH:36][N:35]=[C:34]([S:38][CH3:39])[N:33]=3)=[C:20]([C:22]3[CH:27]=[CH:26][CH:25]=[C:24]([C:28]([F:31])([F:30])[F:29])[CH:23]=3)[N:21]=2)[CH2:13][CH2:12]1)=[O:10])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[CH3:40]OC(OC)N(C)C>C1(C)C=CC=CC=1>[CH2:1]([O:8][C:9]([N:11]1[CH2:16][CH2:15][CH:14]([C:17]2[N:18]([CH3:40])[C:19]([C:32]3[CH:37]=[CH:36][N:35]=[C:34]([S:38][CH3:39])[N:33]=3)=[C:20]([C:22]3[CH:27]=[CH:26][CH:25]=[C:24]([C:28]([F:29])([F:31])[F:30])[CH:23]=3)[N:21]=2)[CH2:13][CH2:12]1)=[O:10])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

Participants

4

Reactant 2

HCID 78373Dimethylformamide dimethyl acetalHCID 106503634-[5-(2-Methylthiopyrimidin-4-yl)-4-(3-trifluoromethylphenyl)-1H-imidazol-2-yl]piperidine-1-carboxylic acid benzyl ester

Product 1

HCID 106030804-[5-(2-Methylthiopyrimidin-4-yl)-1-methyl-4-(3-trifluoromethylphenyl)-1H-imidazol-2-yl]-piperidine-1-carboxylic acid benzyl ester

Reagents, catalysts & solvents 1

HCID 1140TolueneSolvent

Procedure

To a stirring solution of 4-[5-(2-methylthiopyrimidin-4-yl)-4-(3-trifluoromethylphenyl)-1H-imidazol-2-yl]-piperidine-1-carboxylic acid benzyl ester (Example 1E) (4.0 g, 7.22 mmole) in toluene (80 mL) was added dimethylformamide dimethyl acetal (4.0 mL) and the mixture heated to reflux for 18 hours. The reaction was cooled, concentrated in vacuo to a foam and chromatographed on silica using 5% acetone/methylene chloride to give upon concentration of the product containing fractions the title compound 2.78 g.

Workup

  1. temperaturethe mixture heated
  2. temperatureto reflux for 18 hours
  3. temperatureThe reaction was cooled
  4. concentrationconcentrated in vacuo to a foam
  5. customchromatographed on silica using 5% acetone/methylene chloride
  6. customto give upon concentration of the product

Sources & evidence

ORD record
ord-e0bf5bcc26c744469a59c761258c447c
Source dataset
uspto-grants-1999_01
Patent number
US05859041

Reaction notes

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