Sodium Hydroxide → HCID 68963165, compound

HRID 2375993Notes

Reaction equation

HRID 2375993 reaction equation
[CH2:1]([N:8]1[CH2:13][CH2:12][CH:11]([NH:14][C:15]2[N:20]=[CH:19][C:18](/[CH:21]=[CH:22]/[C:23]([O:25]CC)=[O:24])=[CH:17][CH:16]=2)[CH2:10][CH2:9]1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[OH-].[Na+]>CO>[CH2:1]([N:8]1[CH2:13][CH2:12][CH:11]([NH:14][C:15]2[N:20]=[CH:19][C:18](/[CH:21]=[CH:22]/[C:23]([OH:25])=[O:24])=[CH:17][CH:16]=2)[CH2:10][CH2:9]1)[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1

Participants

4

Reactant 2

HCID 14798Sodium HydroxideHCID 86603616HCID 86603616, compound

Product 1

HCID 68963165HCID 68963165, compoundYield 99.1%

Reagents, catalysts & solvents 1

HCID 887MethanolSolvent

Conditions

Temperature
67.5 °C

Procedure

A mixture of ethyl (2E)-3-{6-[(1-benzyl-4-piperidyl)amino]-3-pyridyl}acrylate (470 mg) and 1N NaOH solution (2.6 ml) in MeOH (15 ml) was stirred at 65-70° C. for 2 hours. The reaction mixture was evaporated in vacuo and the residue was dissolved with AcOEt and H2O. The aqueous solution was adjusted to PH6.0 with aq.HCl and evaporated in vacuo. The residue was chromatographed on silicagel eluting with AcOEt-MeOH (85:15). The eluted fractions containing the desired product were collected and evaporated in vacuo to give (2E)-3-{6-[(1-benzyl-4-piperidyl)amino]-3-pyridyl}acrylic acid (430 mg).

Workup

  1. customThe reaction mixture was evaporated in vacuo
  2. dissolutionthe residue was dissolved with AcOEt and H2O
  3. customHCl and evaporated in vacuo
  4. customThe residue was chromatographed on silicagel
  5. washeluting with AcOEt-MeOH (85:15)
  6. additionThe eluted fractions containing the desired product
  7. customwere collected
  8. customevaporated in vacuo

Sources & evidence

ORD record
ord-45c8d4f3a43042a08d54a884e2d58697
Source dataset
uspto-grants-2008_12
Patent number
US07465731B2

Reaction notes

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