1-((2-(2,4-Difluorophenyl)-3-methyloxiran-2-yl)methyl)-1H-1,2,4-triazole, (2R-cis)- → (2R,3R)-2-(2,4-difluorophenyl)-3-(5,6-dimethyl-3',6'-dihydro-2,4'-bipyridin-1'(2'H)-yl)-1-(1,2,4-triazol-1-yl)butan-2-ol

HRID 1009065Notes

Reaction equation

HRID 1009065 reaction equation
[F:1][C:2]1[CH:7]=[C:6]([F:8])[CH:5]=[CH:4][C:3]=1[C@@:9]1([CH2:13][N:14]2[CH:18]=[N:17][CH:16]=[N:15]2)[C@H:11]([CH3:12])[O:10]1.[CH3:19][C:20]1[CH:21]=[CH:22][C:23]([C:27]2[CH2:28][CH2:29][NH:30][CH2:31][CH:32]=2)=[N:24][C:25]=1[CH3:26].O.O.O.Cl([O-])(=O)(=O)=O.[Li+]>C(#N)C>[F:1][C:2]1[CH:7]=[C:6]([F:8])[CH:5]=[CH:4][C:3]=1[C@:9]([OH:10])([C@H:11]([N:30]1[CH2:31][CH:32]=[C:27]([C:23]2[CH:22]=[CH:21][C:20]([CH3:19])=[C:25]([CH3:26])[N:24]=2)[CH2:28][CH2:29]1)[CH3:12])[CH2:13][N:14]1[CH:18]=[N:17][CH:16]=[N:15]1

Participants

5

Reactant 3

HCID 101311911-((2-(2,4-Difluorophenyl)-3-methyloxiran-2-yl)methyl)-1H-1,2,4-triazole, (2R-cis)-HCID 23708903Lithium perchlorate trihydrateHCID 579807215,6-Dimethyl-1',2',3',6'-tetrahydro-2,4'-bipyridine

Product 1

HCID 44538604(2R,3R)-2-(2,4-difluorophenyl)-3-(5,6-dimethyl-3',6'-dihydro-2,4'-bipyridin-1'(2'H)-yl)-1-(1,2,4-triazol-1-yl)butan-2-olYield 44.7%

Reagents, catalysts & solvents 1

HCID 6342AcetonitrileSolvent

Procedure

(2R,3S)-2-(2,4-Difluorophenyl)-3-methyl-2-(1H-1,2,4-triazol-1-ylmethyl)oxirane (0.83 g, 3.3 mmol) and 5,6-dimethyl-1′,2′,3′,6′-tetrahydro-2,4′-bipyridine (5.18 g, 27.5 mmol) were dissolved in acetonitrile (50 ml), and lithium perchlorate trihydrate (7.48 g, 46.6 mmol) was added thereto and refluxed for 40 hours. The solvent was evaporated under a reduced pressure, and the thus obtained residue was dissolved in ethyl acetate and washed with water. The solvent was again evaporated under a reduced pressure, and the residue was purified using a silica gel column to obtain 0.67 g of the intended substance (yield 44.7%).

Workup

  1. temperaturerefluxed for 40 hours
  2. customThe solvent was evaporated under a reduced pressure
  3. dissolutionthe thus obtained residue was dissolved in ethyl acetate
  4. washwashed with water
  5. customThe solvent was again evaporated under a reduced pressure
  6. customthe residue was purified
  7. customto obtain 0.67 g of the intended substance (yield 44.7%)

Sources & evidence

ORD record
ord-a58affa933de40ffa80857875352994f
Source dataset
uspto-grants-2011_07
Patent number
US07973056B2

Reaction notes

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