Diethyl Ether → 1h-Indazole-1-carboxylic acid,5-(azidomethyl)-3-(3-fluorophenyl)-,1,1-dimethylethyl ester

HRID 1983471

Reaction equation

HRID 1983471 reaction equation
Cl[CH2:2][C:3]1[CH:4]=[C:5]2[C:9](=[CH:10][CH:11]=1)[N:8]([C:12]([O:14][C:15]([CH3:18])([CH3:17])[CH3:16])=[O:13])[N:7]=[C:6]2[C:19]1[CH:24]=[CH:23][CH:22]=[C:21]([F:25])[CH:20]=1.[N-:26]=[N+:27]=[N-:28].[Na+].C(OCC)C>CS(C)=O>[N:26]([CH2:2][C:3]1[CH:4]=[C:5]2[C:9](=[CH:10][CH:11]=1)[N:8]([C:12]([O:14][C:15]([CH3:18])([CH3:17])[CH3:16])=[O:13])[N:7]=[C:6]2[C:19]1[CH:24]=[CH:23][CH:22]=[C:21]([F:25])[CH:20]=1)=[N+:27]=[N-:28]

Participants

5

Reactant 3

HCID 3283Diethyl EtherHCID 33557Sodium AzideHCID 222606161h-Indazole-1-carboxylic acid,5-(chloromethyl)-3-(3-fluorophenyl)-,1,1-dimethylethyl ester

Product 1

HCID 222608731h-Indazole-1-carboxylic acid,5-(azidomethyl)-3-(3-fluorophenyl)-,1,1-dimethylethyl esterYield 93.5%

Reagents, catalysts & solvents 1

HCID 679Dimethyl SulfoxideSolvent

Procedure

To a solution of 600 mg of tert-butyl 5-(chloromethyl)-3-(3-fluorophenyl)-1H-1-indazolecarboxylate produced in Production Example I-24-b in 4 ml dimethyl sulfoxide was added 162 mg of sodium azide, and the mixture was stirred at room temperature for 50 minutes. To the reaction mixture was added 25 ml of diethyl ether. The mixture was sequentially washed with water (×3) and brine, dried over anhydrous magnesium sulfate and the solvent was evaporated, to give 571 mg of the title compound as pale yellow crystals.

Workup

  1. washThe mixture was sequentially washed with water (×3) and brine
  2. dry with materialdried over anhydrous magnesium sulfate
  3. customthe solvent was evaporated

Sources & evidence

ORD record
ord-5842b34e75984736a323a4482c589f44
Source dataset
uspto-grants-2009_06
Patent number
US07541376B2

Linked notes

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