Methanol → 4'-{[7-Butyl-5-oxo-4-(4-oxocyclohexyl)-4,5-dihydro[1,2,4]triazolo[1,5-a]pyrimidin-6-yl]methyl}biphenyl-2-carbonitrile

HRID 2048323Notes

Reaction equation

HRID 2048323 reaction equation
[CH2:1]([C:5]1[N:10]2[N:11]=[CH:12][N:13]=[C:9]2[N:8]([CH:14]2[CH2:23][CH2:22][C:17]3(OCC[O:18]3)[CH2:16][CH2:15]2)[C:7](=[O:24])[C:6]=1[CH2:25][C:26]1[CH:31]=[CH:30][C:29]([C:32]2[C:33]([C:38]#[N:39])=[CH:34][CH:35]=[CH:36][CH:37]=2)=[CH:28][CH:27]=1)[CH2:2][CH2:3][CH3:4].O.C1(C)C=CC(S(O)(=O)=O)=CC=1.CO.O1CCCC1>C(OCC)(=O)C>[CH2:1]([C:5]1[N:10]2[N:11]=[CH:12][N:13]=[C:9]2[N:8]([CH:14]2[CH2:15][CH2:16][C:17](=[O:18])[CH2:22][CH2:23]2)[C:7](=[O:24])[C:6]=1[CH2:25][C:26]1[CH:31]=[CH:30][C:29]([C:32]2[C:33]([C:38]#[N:39])=[CH:34][CH:35]=[CH:36][CH:37]=2)=[CH:28][CH:27]=1)[CH2:2][CH2:3][CH3:4]

Participants

6

Reactant 4

HCID 887MethanolHCID 8028TetrahydrofuranHCID 521998p-Toluenesulfonic acid monohydrateHCID 670095364'-{[7-Butyl-4-(1,4-dioxaspiro[4.5]dec-8-yl)-5-oxo-4,5-dihydro[1,2,4]triazolo[1,5-a]pyrimidin-6-yl]methyl}biphenyl-2-carbonitrile

Product 1

HCID 670090334'-{[7-Butyl-5-oxo-4-(4-oxocyclohexyl)-4,5-dihydro[1,2,4]triazolo[1,5-a]pyrimidin-6-yl]methyl}biphenyl-2-carbonitrileYield 70.4%

Reagents, catalysts & solvents 1

HCID 8857Ethyl AcetateSolvent

Conditions

Temperature
60 °C

Procedure

A mixture of 4′-{[7-butyl-4-(1,4-dioxaspiro[4.5]dec-8-yl)-5-oxo-4,5-dihydro[1,2,4]triazolo[1,5-a]pyrimidin-6-yl]methyl}biphenyl-2-carbonitrile (3.1 g), p-toluenesulfonic acid monohydrate (0.1 g), methanol (50 mL) and tetrahydrofuran (50 mL) was stirred at 60° C. for 16 hr. The reaction mixture was diluted with ethyl acetate, washed with saturated brine, and dried over anhydrous magnesium sulfate. The solvent was evaporated under reduced pressure. The obtained residue was dissolved in acetone (20 mL), 1 N hydrochloric acid (20 mL) was added, and the mixture was stirred at room temperature for 2 hr. The reaction mixture was diluted with ethyl acetate, washed with saturated brine, and dried over anhydrous magnesium sulfate. The solvent was evaporated under reduced pressure and the residue was purified by silica gel column chromatography to give the title compound as a colorless solid (2 g, 67%).

Workup

  1. washwashed with saturated brine
  2. dry with materialdried over anhydrous magnesium sulfate
  3. customThe solvent was evaporated under reduced pressure
  4. dissolutionThe obtained residue was dissolved in acetone (20 mL)
  5. addition1 N hydrochloric acid (20 mL) was added
  6. stirringthe mixture was stirred at room temperature for 2 hr
  7. additionThe reaction mixture was diluted with ethyl acetate
  8. washwashed with saturated brine
  9. dry with materialdried over anhydrous magnesium sulfate
  10. customThe solvent was evaporated under reduced pressure
  11. customthe residue was purified by silica gel column chromatography

Sources & evidence

ORD record
ord-9b4cec359fc84bfda73d0d8feb7509c2
Source dataset
uspto-grants-2013_11
Patent number
US08592431B2

Reaction notes

Loading…