Water → HCID 68757633, compound

HRID 574529Notes

Reaction equation

HRID 574529 reaction equation
[C:1]([C:5]1[CH:13]=[CH:12][C:11]2[NH:10][C:9]3[CH2:14][CH2:15][N:16]([CH3:18])[CH2:17][C:8]=3[C:7]=2[CH:6]=1)([CH3:4])([CH3:3])[CH3:2].[OH-].[K+].F[C:22](F)(F)[C:23]1[CH:28]=[CH:27][C:26]([CH:29]=[CH2:30])=[CH:25][N:24]=1.O>CN1C(=O)CCC1>[C:1]([C:5]1[CH:13]=[CH:12][C:11]2[N:10]([CH2:30][CH2:29][C:26]3[CH:25]=[N:24][C:23]([CH3:22])=[CH:28][CH:27]=3)[C:9]3[CH2:14][CH2:15][N:16]([CH3:18])[CH2:17][C:8]=3[C:7]=2[CH:6]=1)([CH3:4])([CH3:2])[CH3:3]

Participants

6

Reactant 4

HCID 962WaterHCID 14797Potassium HydroxideHCID 574168485-Ethenyl-2-(trifluoromethyl)pyridineHCID 67311353HCID 67311353, compound

Product 1

HCID 68757633HCID 68757633, compoundYield 10.1%

Reagents, catalysts & solvents 1

HCID 13387N-methyl-2-pyrrolidoneSolvent

Procedure

To a solution of 8-tert-butyl-2,3,4,5-tetrahydro-2-methyl-1H-pyrido[4,3-b]indole (200 mg, 0.82 mmol) in NMP (3.0 ml), powdered KOH (462 mg, 8.23 mmol) was added and stirred for 10 min at 25 deg C. After which 2-(trifluoromethyl)-5-vinylpyridine (286 mg, 1.65 mmol) was added slowly to the above solution and stirred for 14 h at 25 deg C. After completion of the reaction (monitored by LCMS), water (5 mL) was added to the crude and extracted with the ethylacetate. The organic layer was dried and concentrated. The resulting crude was purified by reverse-phase chromatography (C-18, 500 mm×50 mm, Mobile Phase A=0.05% TFA in water, B=0.05% TFA in acetonitrile, gradient: 10% B to 80% B in 30 min, injection vol. 5 mL) to obtain 30 mg of 8-tert-butyl-2,3,4,5-tetrahydro-2-methyl-5-(2-(6-methylpyridin-3-yl)ethyl)-1H-pyrido[4,3-b]indole as TFA salt

Workup

  1. stirringstirred for 14 h at 25 deg C
  2. additionwas added to the crude
  3. extractionextracted with the ethylacetate
  4. customThe organic layer was dried
  5. concentrationconcentrated
  6. customThe resulting crude was purified by reverse-phase chromatography (C-18, 500 mm×50 mm, Mobile Phase A=0.05% TFA in water, B=0.05% TFA in acetonitrile, gradient: 10% B to 80% B in 30 min, injection vol. 5 mL)

Sources & evidence

ORD record
ord-0125fbef759f4f2ebb47635e88e97a32
Source dataset
uspto-grants-2015_05
Patent number
US09034880B2

Reaction notes

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