Sodium Hydroxide → HCID 66725242, compound

HRID 559791Notes

Reaction equation

HRID 559791 reaction equation
[CH3:1][C:2]1[N:3]([C:28]2[CH:33]=[CH:32][CH:31]=[C:30]([C:34]([F:37])([F:36])[F:35])[CH:29]=2)[C:4](=[O:27])[C:5]([C:13]([NH:15][CH2:16][C:17]2[CH:22]=[CH:21][C:20]([S:23]([CH3:26])(=[O:25])=[O:24])=[CH:19][CH:18]=2)=[O:14])=[CH:6][C:7]=1[C:8]([O:10]CC)=[O:9].[OH-].[Na+]>C1COCC1.O>[CH3:26][S:23]([C:20]1[CH:19]=[CH:18][C:17]([CH2:16][NH:15][C:13]([C:5]2[C:4](=[O:27])[N:3]([C:28]3[CH:33]=[CH:32][CH:31]=[C:30]([C:34]([F:36])([F:35])[F:37])[CH:29]=3)[C:2]([CH3:1])=[C:7]([C:8]([OH:10])=[O:9])[CH:6]=2)=[O:14])=[CH:22][CH:21]=1)(=[O:25])=[O:24]

Participants

5

Reactant 2

HCID 14798Sodium Hydroxide2×HCID 66725440HCID 66725440, compound

Product 1

HCID 66725242HCID 66725242, compound

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 8028TetrahydrofuranSolvent

Procedure

To a solution of ethyl 2-methyl-5-({[4-(methylsulfonyl)benzyl]amino}carbonyl)-6-oxo-1-[3-(trifluoromethyl)phenyl]-1,6-dihydropyridine-3-carboxylate (0.70 g, 1.30 mmol) in THF (10 ml) and water (10 ml) was added NaOH (1M, 2 ml, 2 mmol), and the mixture was stirred for 1 h at room temperature, monitoring the progress of the reaction by LC-MS. 20% conversion was observed and another portion of NaOH (1M, 1 ml, 1 mmol) was added, and the reaction was allowed to run for another hour. This process was repeated until complete conversion of the ester was observed (normally 3-4 hours). The outcome of the reaction is two compounds with the same mass, in a 95:5 proportion. The main product is the subtitle compound, and the other is a regioisomer. The reaction mixture was evaporated in order to remove THF, and the residual water solution was acidified and then extracted into EtOAc. The organic phase was collected and dried over Na2SO4. Filtration and evaporation gave a crude product 0.60 g (90%) of a yellowish solid, which was used further without purification. A portion of the product was purified using preparative HPLC.

Workup

  1. customthe progress of the reaction by LC-MS
  2. waitto run for another hour
  3. customnormally 3-4 hours

Sources & evidence

ORD record
ord-2f76266031e74f37a23a7c5e34f24bdc
Source dataset
uspto-grants-2011_11
Patent number
US08063073B2

Reaction notes

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