HCID 67009173, compound → 4'-{[4-(4-Hydroxyphenyl)-5-oxo-7-propyl-4,5-dihydro[1,2,4]triazolo[1,5-a]pyrimidin-6-yl]methyl}biphenyl-2-carbonitrile

HRID 2048621Notes

Reaction equation

HRID 2048621 reaction equation
CC([O:4][C:5]1[CH:10]=[CH:9][C:8]([N:11]2[C:16](=[O:17])[C:15]([CH2:18][C:19]3[CH:24]=[CH:23][C:22]([C:25]4[C:26]([C:31]#[N:32])=[CH:27][CH:28]=[CH:29][CH:30]=4)=[CH:21][CH:20]=3)=[C:14]([CH2:33][CH2:34][CH3:35])[N:13]3[N:36]=[CH:37][N:38]=[C:12]23)=[CH:7][CH:6]=1)C>Br.C(O)(=O)C>[OH:4][C:5]1[CH:10]=[CH:9][C:8]([N:11]2[C:16](=[O:17])[C:15]([CH2:18][C:19]3[CH:24]=[CH:23][C:22]([C:25]4[C:26]([C:31]#[N:32])=[CH:27][CH:28]=[CH:29][CH:30]=4)=[CH:21][CH:20]=3)=[C:14]([CH2:33][CH2:34][CH3:35])[N:13]3[N:36]=[CH:37][N:38]=[C:12]23)=[CH:7][CH:6]=1

Participants

3

Reactant 1

HCID 67009173HCID 67009173, compound

Product 1

HCID 670088624'-{[4-(4-Hydroxyphenyl)-5-oxo-7-propyl-4,5-dihydro[1,2,4]triazolo[1,5-a]pyrimidin-6-yl]methyl}biphenyl-2-carbonitrileYield 73.2%

Reagents, catalysts & solvents 1

HCID 21893785Acetic Acid Mixture with Hydrobromic AcidSolvent

Procedure

A mixture of 4′-[(5-oxo-7-propyl-4,5-dihydro[1,2,4]triazolo[1,5-a]pyrimidin-6-yl)methyl]biphenyl-2-carbonitrile (6.00 g), 4-isopropoxyphenylboric acid (5.85 g), copper(II) acetate (5.90 g), pyridine (18 mL), triethylamine (9 mL), molecular sieves 4A (18.0 g) and tetrahydrofuran (100 mL) was stirred at room temperature for 1 day. Ethyl acetate (100 mL) was added to the reaction mixture, the mixture was stirred at room temperature for 1 hr, and the insoluble material was filtered off. The filtrate was concentrated, and the residue was purified by silica gel column chromatography to give 4′-({4-[4-(1-methylethoxy)phenyl]-5-oxo-7-propyl-4,5-dihydro[1,2,4]triazolo[1,5-a]pyrimidin-6-yl}methyl)biphenyl-2-carbonitrile as a colorless solid (6.53 g, 80%). A mixture of 4′-({4-[4-(1-methylethoxy)phenyl]-5-oxo-7-propyl-4,5-dihydro[1,2,4]triazolo[1,5-a]pyrimidin-6-yl}methyl)biphenyl-2-carbonitrile (6.53 g) and 25% hydrobromic acid-acetic acid solution (10 mL) was stirred under refluxing for 2 hr. The reaction mixture was concentrated, and the residue was dissolved in ethyl acetate. The obtained ethyl acetate solution was washed with saturated aqueous sodium hydrogen carbonate and then 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 (4.38 g, 73%).

Workup

  1. temperatureunder refluxing for 2 hr
  2. concentrationThe reaction mixture was concentrated
  3. dissolutionthe residue was dissolved in ethyl acetate
  4. washThe obtained ethyl acetate solution was washed with saturated aqueous sodium hydrogen carbonate
  5. dry with materialwith saturated brine, and dried over anhydrous magnesium sulfate
  6. customThe solvent was evaporated under reduced pressure
  7. customthe residue was purified by silica gel column chromatography

Sources & evidence

ORD record
ord-33f84c7fb6384cfca1eb0f4d05b527d4
Source dataset
uspto-grants-2013_11
Patent number
US08592431B2

Reaction notes

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