Pyridine → HCID 67009234, compound

HRID 1412920Notes

Reaction equation

HRID 1412920 reaction equation
[O:1]=[C:2]1[C:7]([CH2:8][C:9]2[CH:14]=[CH:13][C:12]([C:15]3[C:16]([C:21]#[N:22])=[CH:17][CH:18]=[CH:19][CH:20]=3)=[CH:11][CH:10]=2)=[C:6]([CH2:23][CH2:24][CH3:25])[N:5]2[N:26]=[CH:27][N:28]=[C:4]2[NH:3]1.[C:29]([O:32][CH2:33][C:34]([CH3:46])([CH3:45])[O:35][C:36]1[CH:41]=[CH:40][C:39](B(O)O)=[CH:38][CH:37]=1)(=[O:31])[CH3:30].N1C=CC=CC=1.C(N(CC)CC)C>C([O-])(=O)C.[Cu+2].C([O-])(=O)C.C(OCC)(=O)C.O1CCCC1>[C:29]([O:32][CH2:33][C:34]([O:35][C:36]1[CH:37]=[CH:38][C:39]([N:3]2[C:2](=[O:1])[C:7]([CH2:8][C:9]3[CH:10]=[CH:11][C:12]([C:15]4[CH:20]=[CH:19][CH:18]=[CH:17][C:16]=4[C:21]#[N:22])=[CH:13][CH:14]=3)=[C:6]([CH2:23][CH2:24][CH3:25])[N:5]3[N:26]=[CH:27][N:28]=[C:4]23)=[CH:40][CH:41]=1)([CH3:46])[CH3:45])(=[O:31])[CH3:30]

Participants

8

Reactant 4

HCID 1049PyridineHCID 8471TriethylamineHCID 57460875HCID 57460875, compoundHCID 1357150294'-[(5-Oxo-7-propyl-4,5-dihydro[1,2,4]triazolo[1,5-a]pyrimidin-6-yl)methyl]biphenyl-2-carbonitrile

Product 1

HCID 67009234HCID 67009234, compoundYield 80.2%

Reagents, catalysts & solvents 3

HCID 8895Cupric acetateCatalystHCID 8028TetrahydrofuranSolventHCID 8857Ethyl AcetateSolvent

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 (0.68 g), {4-[2-(acetyloxy)-1,1-dimethylethoxy]phenyl}boronic acid (0.94 g), copper(II) acetate (0.68 g), pyridine (2.0 mL), triethylamine (1.0 mL), molecular sieves 4A (2.00 g) and tetrahydrofuran (20 mL) was stirred at room temperature for 1 day. To the reaction mixture was added ethyl acetate (100 mL), and 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 2-(4-{6-[(2′-cyanobiphenyl-4-yl)methyl]-5-oxo-7-propyl[1,2,4]triazolo[1,5-a]pyrimidin-4(5H)-yl}phenoxy)-2-methylpropyl acetate as a colorless oil (0.85 g, 80%). A mixture of hydroxylammonium chloride (1.55 g), sodium hydrogen carbonate (2.50 g) and dimethyl sulfoxide (15 mL) was stirred at 40° C. for 30 min, 2-(4-{6-[(2′-cyanobiphenyl-4-yl)methyl]-5-oxo-7-propyl[1,2,4]triazolo[1,5-a]pyrimidin-4(5H)-yl}phenoxy)-2-methylpropyl acetate (0.85 g) was added, and the mixture was stirred at 90° C. for 18 hr. The reaction mixture was diluted with ethyl acetate, washed with water and then with saturated brine, and dried over anhydrous magnesium sulfate. The solvent was evaporated under reduced pressure, and the residue was dissolved in tetrahydrofuran (15 mL). N,N′-Carbonyldiimidazole (0.36 g) and then 1,8-diazabicyclo[5.4.0]undec-7-ene (0.33 mL) were added, and the mixture was stirred at room temperature for 2 hr. The reaction mixture was diluted with ethyl acetate, washed with saturated aqueous potassium hydrogensulfate solution 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 (0.25 g, 28%).

Workup

  1. stirringthe mixture was stirred at room temperature for 1 hr
  2. filtrationthe insoluble material was filtered off
  3. concentrationThe filtrate was concentrated
  4. customthe residue was purified by silica gel column chromatography

Sources & evidence

ORD record
ord-3358e61b7e8a4270a96423d05e3038b1
Source dataset
uspto-grants-2014_12
Patent number
US08921379B2

Reaction notes

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