5-Ethenylpyridine-2-carboxylic acid → HCID 59368256, compound

HRID 1481409Notes

Reaction equation

HRID 1481409 reaction equation
[Cl:1][C:2]1[CH:10]=[CH:9][C:8]2[NH:7][C:6]3[CH2:11][CH2:12][N:13]([CH3:16])[CH2:14][CH2:15][C:5]=3[C:4]=2[CH:3]=1.[CH:17]([C:19]1[CH:20]=[CH:21][C:22]([C:25]([OH:27])=[O:26])=[N:23][CH:24]=1)=[CH2:18]>[OH-].[Na+].[Cl-].C([N+](CCCC)(CCCC)CCCC)CCC.O>[Cl:1][C:2]1[CH:10]=[CH:9][C:8]2[N:7]([CH2:18][CH2:17][C:19]3[CH:20]=[CH:21][C:22]([C:25]([OH:27])=[O:26])=[N:23][CH:24]=3)[C:6]3[CH2:11][CH2:12][N:13]([CH3:16])[CH2:14][CH2:15][C:5]=3[C:4]=2[CH:3]=1

Participants

6

Reactant 2

HCID 230615385-Ethenylpyridine-2-carboxylic acidHCID 685585079-Chloro-3-methyl-1,2,3,4,5,6-hexahydroazepino[4,5-b]indole

Product 1

HCID 59368256HCID 59368256, compoundYield 2.5%

Reagents, catalysts & solvents 3

HCID 70681Tetrabutylammonium ChlorideCatalystHCID 962WaterSolventHCID 14798Sodium HydroxideSolvent

Conditions

Temperature
90 °C

Procedure

The title compound was prepared by following general procedure 4. To a solution of 9-chloro-3-methyl-1,2,3,4,5,6-hexahydroazepino[4,5-b]indole (200 mg, 0.85 mmol) in 50% aq. NaOH solution (3 mL) was added, tetra n-butyl ammonium chloride (11 mg, 0.042 mmol) followed by 5-vinylpicolinic acid (140 mg, 0.94 mmol). The reaction mixture was heated at 90° C. for overnight and was monitored by TLC. After completion of reaction, the reaction mixture was diluted with water, extracted with ethyl acetate. The organic layer was separated, dried over anhydrous Na2SO4, and concentrated under reduced pressure. The crude product was purified by reverse phase chromatography to afford 8 mg of 5-(2-(9-chloro-3-methyl-2,3,4,5-tetrahydroazepino[4,5-b]indol-6(1H)-yl)ethyl)picolinic acid as the TFA salt.

Workup

  1. customThe title compound was prepared
  2. customAfter completion of reaction
  3. extractionextracted with ethyl acetate
  4. customThe organic layer was separated
  5. dry with materialdried over anhydrous Na2SO4
  6. concentrationconcentrated under reduced pressure
  7. customThe crude product was purified by reverse phase chromatography

Sources & evidence

ORD record
ord-34967e6b3363421387788ed5ec69d298
Source dataset
uspto-grants-2016_08
Patent number
US09409910B2

Reaction notes

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