Sodium Thiosulfate Pentahydrate → 2-methyl-6-{[2'-(5-oxo-4,5-dihydro-1,2,4-oxadiazol-3-yl)biphenyl-4-yl]methyl}-7-propyl-4-(3,3,3-trifluoro-2-oxopropyl) [1,2,4]triazolo[1,5-a]pyrimidin-5(4H)-one

HRID 1688948Notes

Reaction equation

HRID 1688948 reaction equation
[CH3:1][C:2]1[N:40]=[C:5]2[N:6]([CH2:33][CH:34]([OH:39])[C:35]([F:38])([F:37])[F:36])[C:7](=[O:32])[C:8]([CH2:13][C:14]3[CH:19]=[CH:18][C:17]([C:20]4[CH:25]=[CH:24][CH:23]=[CH:22][C:21]=4[C:26]4[NH:30][C:29](=[O:31])[O:28][N:27]=4)=[CH:16][CH:15]=3)=[C:9]([CH2:10][CH2:11][CH3:12])[N:4]2[N:3]=1.CC(OI1(OC(C)=O)(OC(C)=O)OC(=O)C2C=CC=CC1=2)=O.C(=O)([O-])O.[Na+].O.O.O.O.O.S([O-])([O-])(=O)=S.[Na+].[Na+]>C(OCC)(=O)C.C(#N)C>[CH3:1][C:2]1[N:40]=[C:5]2[N:6]([CH2:33][C:34](=[O:39])[C:35]([F:38])([F:37])[F:36])[C:7](=[O:32])[C:8]([CH2:13][C:14]3[CH:19]=[CH:18][C:17]([C:20]4[CH:25]=[CH:24][CH:23]=[CH:22][C:21]=4[C:26]4[NH:30][C:29](=[O:31])[O:28][N:27]=4)=[CH:16][CH:15]=3)=[C:9]([CH2:10][CH2:11][CH3:12])[N:4]2[N:3]=1

Participants

7

Reactant 4

HCID 61475Sodium Thiosulfate PentahydrateHCID 159087TriacetoxyperiodinaneHCID 516892Sodium BicarbonateHCID 1360636912-methyl-6-{[2'-(5-oxo-4,5-dihydro-1,2,4-oxadiazol-3-yl)biphenyl-4-yl]methyl}-7-propyl-4-(3,3,3-trifluoro-2-hydroxypropyl) [1,2,4]triazolo[1,5-a]pyrimidin-5(4H)-one

Product 1

HCID 1360637522-methyl-6-{[2'-(5-oxo-4,5-dihydro-1,2,4-oxadiazol-3-yl)biphenyl-4-yl]methyl}-7-propyl-4-(3,3,3-trifluoro-2-oxopropyl) [1,2,4]triazolo[1,5-a]pyrimidin-5(4H)-oneYield 44.1%

Reagents, catalysts & solvents 2

HCID 6342AcetonitrileSolventHCID 8857Ethyl AcetateSolvent

Procedure

A mixture of 2-methyl-6-{[2′-(5-oxo-4,5-dihydro-1,2,4-oxadiazol-3-yl)biphenyl-4-yl]methyl}-7-propyl-4-(3,3,3-trifluoro-2-hydroxypropyl) [1,2,4]triazolo[1,5-a]pyrimidin-5(4H)-one (0.41 g), Dess-Martin reagent (0.47 g) and acetonitrile (10 mL) was stirred at room temperature for 3 hr. Saturated aqueous sodium hydrogen carbonate and sodium thiosulfate-pentahydrate were added to the reaction mixture, and the mixture was stirred at room temperature for 2 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 purified by silica gel column chromatography to give the title compound as a colorless amorphous solid (0.18 g, 43%).

Workup

  1. stirringthe mixture was stirred at room temperature for 2 hr
  2. washwashed with water
  3. dry with materialwith saturated brine, and dried over anhydrous magnesium sulfate
  4. customThe solvent was evaporated under reduced pressure
  5. customthe residue was purified by silica gel column chromatography

Sources & evidence

ORD record
ord-86b06a9d33aa47758571c1318631055f
Source dataset
uspto-grants-2012_04
Patent number
US08148383B2

Reaction notes

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