Sodium Hydroxide → HCID 67607642, compound

HRID 2406405Notes

Reaction equation

HRID 2406405 reaction equation
[OH-].[Na+].[C:3]([O:7][C@@H:8]([C:13]1[C:14]([C:27]2[CH:32]=[CH:31][C:30]([C:33]([F:36])([F:35])[F:34])=[CH:29][CH:28]=2)=[C:15]2[C:22]3[CH2:23][CH2:24][CH2:25][CH2:26][C:21]=3[S:20][C:16]2=[N:17][C:18]=1[CH3:19])[C:9]([O:11]C)=[O:10])([CH3:6])([CH3:5])[CH3:4]>>[C:3]([O:7][C@@H:8]([C:13]1[C:14]([C:27]2[CH:28]=[CH:29][C:30]([C:33]([F:35])([F:36])[F:34])=[CH:31][CH:32]=2)=[C:15]2[C:22]3[CH2:23][CH2:24][CH2:25][CH2:26][C:21]=3[S:20][C:16]2=[N:17][C:18]=1[CH3:19])[C:9]([OH:11])=[O:10])([CH3:6])([CH3:4])[CH3:5]

Participants

3

Reactant 2

HCID 14798Sodium HydroxideHCID 67607979(S)-methyl 2-(tert-butoxy)-2-(2-methyl-4-(4-(trifluoromethyl)phenyl)-5,6,7,8-tetrahydro benzo[4,5]thieno[2,3-b]pyridin-3-yl)acetate

Product 1

HCID 67607642HCID 67607642, compoundYield 56.3%

Conditions

Temperature
60 °C

Procedure

1 M Aqueous sodium hydroxide solution (1.6 mL, 1.6 mmol) was added to a solution of (S)-methyl 2-(tert-butoxy)-2-(2-methyl-4-(4-(trifluoromethyl)phenyl)-5,6,7,8-tetrahydro benzo[4,5]thieno[2,3-b]pyridin-3-yl)acetate (75 mg, 0.15 mmol) in 1:1 tetrhydrofuran/industrial methylated spirit (4 mL) at room temperature. The resulting mixture was heated at 60° C. 1.5 h. The resulting solution was concentrated in vacuo and the residue was dissolved in water (10 mL). The aqueous solution was adjusted to pH 4 by the addition of 2 M aqueous hydrochloric acid solution and the resulting suspension was extracted with dichloromethane (20 mL). The organic layer was washed with brine, dried (MgSO4) and concentrated in vacuo to give the crude product as a pale yellow solid. This was purified by flash column chromatography on silica eluting with methanol in dichloromethane (5%) to give the title compound (40.3 mg, 56%) as a pale yellow solid.

Workup

  1. custom1.5 h
  2. concentrationThe resulting solution was concentrated in vacuo
  3. dissolutionthe residue was dissolved in water (10 mL)
  4. additionThe aqueous solution was adjusted to pH 4 by the addition of 2 M aqueous hydrochloric acid solution
  5. extractionthe resulting suspension was extracted with dichloromethane (20 mL)
  6. washThe organic layer was washed with brine
  7. dry with materialdried (MgSO4)
  8. concentrationconcentrated in vacuo
  9. customto give the crude product as a pale yellow solid
  10. customThis was purified by flash column chromatography on silica eluting with methanol in dichloromethane (5%)

Sources & evidence

ORD record
ord-faf4b0b551ea48058ae57e4ceeeaa39e
Source dataset
uspto-grants-2014_08
Patent number
US08809363B2

Reaction notes

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