Water → 2-(8-chloro-2-methyl-3,4-dihydro-1H-pyrido[4,3-b]indol-5(2H)-yl)-1-(4-chlorophenyl)ethanone

HRID 1773247Notes

Reaction equation

HRID 1773247 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]([CH3:15])[CH2:14][C:5]=3[C:4]=2[CH:3]=1.[OH-].[K+].Br[CH2:19][C:20]([C:22]1[CH:27]=[CH:26][C:25]([Cl:28])=[CH:24][CH:23]=1)=[O:21].O>CN1C(=O)CCC1>[Cl:1][C:2]1[CH:10]=[CH:9][C:8]2[N:7]([CH2:19][C:20]([C:22]3[CH:27]=[CH:26][C:25]([Cl:28])=[CH:24][CH:23]=3)=[O:21])[C:6]3[CH2:11][CH2:12][N:13]([CH3:15])[CH2:14][C:5]=3[C:4]=2[CH:3]=1

Participants

6

Reactant 4

HCID 962WaterHCID 14797Potassium HydroxideHCID 196158-chloro-2-methyl-1H,2H,3H,4H,5H-pyrido(4,3-b)indoleHCID 68303p-Chlorophenacyl bromide

Product 1

HCID 497793092-(8-chloro-2-methyl-3,4-dihydro-1H-pyrido[4,3-b]indol-5(2H)-yl)-1-(4-chlorophenyl)ethanone

Reagents, catalysts & solvents 1

HCID 13387N-methyl-2-pyrrolidoneSolvent

Procedure

8-Chloro-2-methyl-2,3,4,5-tetrahydro-1H-pyrido[4,3-b]indole (220 mg, 1 mmol) was dissolved in 2 mL NMP and to this was added KOH (560 mg, 10 mmol) followed by 2-bromo-1-(4-chloro-phenyl)-ethanone (233 mg, 1 mmol) The reaction was kept overnight at RT. Water was added and the compound extracted with EtOAc. The organic layer was washed with water, concentrated and purified by column chromatography using silica gel (#100-200 mesh) using 0-3% MeOH:DCM as eluent. The compound was further purified by reverse phase chromatography. 1HNMR (CD3OD, TFA salt) d (ppm): 8.10 (m, 2H), 7.60 (d, 2H), 7.50 (s, 1H), 7.30 (d, 1H), 7.10 (m, 1H), 5.80 (m, 2H), 4.70 (m, 1H), 4.40 (m, 1H), 3.80 (m, 1H), 3.60 (m, 1H), 3.05 (s, 5H).

Workup

  1. extractionthe compound extracted with EtOAc
  2. washThe organic layer was washed with water
  3. concentrationconcentrated
  4. custompurified by column chromatography
  5. customThe compound was further purified by reverse phase chromatography

Sources & evidence

ORD record
ord-01dff0510a1549a2a992733426fb8b3c
Source dataset
uspto-grants-2016_02
Patent number
US09255094B2

Reaction notes

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