Sodium Bicarbonate → HCID 178462434, compound

HRID 1936855Notes

Reaction equation

HRID 1936855 reaction equation
[O:1]=[CH:2]/[CH:3]=[CH:4]/[CH:5]=[CH:6]/[C:7]1[CH:14]=[CH:13][C:10]([C:11]#[N:12])=[CH:9][CH:8]=1.[F:15][C:16]1[CH:21]=[C:20]([F:22])[CH:19]=[CH:18][C:17]=1[C@:23]([OH:38])([C@H:30]([S:32][CH:33]([CH2:36]O)[CH2:34][OH:35])[CH3:31])[CH2:24][N:25]1[CH:29]=[N:28][CH:27]=[N:26]1.O.C1(C)C=CC(S(O)(=O)=O)=CC=1.C(=O)([O-])O.[Na+]>ClCCl>[C:11]([C:10]1[CH:13]=[CH:14][C:7](/[CH:6]=[CH:5]/[CH:4]=[CH:3]/[C@H:2]2[O:35][CH2:34][C@H:33]([S:32][C@H:30]([CH3:31])[C@:23]([C:17]3[CH:18]=[CH:19][C:20]([F:22])=[CH:21][C:16]=3[F:15])([OH:38])[CH2:24][N:25]3[CH:29]=[N:28][CH:27]=[N:26]3)[CH2:36][O:1]2)=[CH:8][CH:9]=1)#[N:12]

Participants

6

Reactant 4

HCID 516892Sodium BicarbonateHCID 521998p-Toluenesulfonic acid monohydrateHCID 10594623(2R,3R)-2-(2,4-difluorophenyl)-3-[[1-(hydroxymethyl)-2-hydroxyethyl]-thio]-1-(1H-1,2,4-triazol-1-yl)-2-butanolHCID 106550534-[(1E,3E)-5-Oxo-1,3-pentadien-1-yl]benzonitrile

Product 1

HCID 178462434HCID 178462434, compoundYield 81.3%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

A mixture of 240 mg (1.31 mmol) of 4-[(1E,3E)-5-oxo-1,3-pentadienyl]benzonitrile [prepared as described in Step 1(i) above], 392 mg (1.09 mmol) of (2R,3R)-2-(2,4-difluorophenyl)-3-[[1-(hydroxymethyl)-2-hydroxyethyl]thio]-1-(1H-1,2,4-triazol-1-yl)-2-butanol [prepared as described in Japanese Patent Application (Kokai) Hei 8-333350)], 249 mg (1.31 mmol) of p-toluenesulfonic acid monohydrate, 16 ml of dichloromethane and 3.9 g of molecular sieves 4A was stirred at ambient temperature over night. Aqueous sodium hydrogen carbonate was then added to the reaction mixture and insoluble material was removed by filtration. The resulting filtrate was extracted with ethyl acetate and the organic layer was dried and then concentrated. The resulting residue was purified by chromatography on silica gel (15 g) column using a 1:1 mixture of ethyl acetate and hexane as the eluant to give 465 mg (yield 81%) of the title compound as a solid. This solid was recrystallized from a mixture of ethyl acetate and hexane to afford crystals.

Workup

  1. customprepared
  2. customwas removed by filtration
  3. extractionThe resulting filtrate was extracted with ethyl acetate
  4. customthe organic layer was dried
  5. concentrationconcentrated
  6. customThe resulting residue was purified by chromatography on silica gel (15 g) column
  7. additiona 1:1 mixture of ethyl acetate and hexane as the eluant

Sources & evidence

ORD record
ord-cc5a42e3aad64a9b88f01ddcb14e6f05
Source dataset
uspto-grants-2002_05
Patent number
US06391903B1

Reaction notes

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