Potassium Carbonate → HCID 15521593, compound

HRID 1530954Notes

Reaction equation

HRID 1530954 reaction equation
[Br:1][C:2]1[CH:3]=[CH:4][C:5]2[N:6]3[CH:18]=[C:17]([CH2:19][C:20]4[CH:21]=[N:22][CH:23]=[CH:24][CH:25]=4)[C:16](=[O:26])[C:8]4[CH:9]=[C:10]([OH:15])[CH:11]=[C:12]([C:13]=2[CH:14]=1)[C:7]3=4.C(=O)([O-])[O-].[K+].[K+].Br[CH2:34][CH2:35][CH2:36][OH:37]>CS(C)=O>[Br:1][C:2]1[CH:3]=[CH:4][C:5]2[N:6]3[CH:18]=[C:17]([CH2:19][C:20]4[CH:21]=[N:22][CH:23]=[CH:24][CH:25]=4)[C:16](=[O:26])[C:8]4[CH:9]=[C:10]([O:15][CH2:34][CH2:35][CH2:36][OH:37])[CH:11]=[C:12]([C:13]=2[CH:14]=1)[C:7]3=4

Participants

5

Reactant 3

HCID 11430Potassium CarbonateHCID 123083-Bromo-1-propanolHCID 1588691010-bromo-2-hydroxy-5-(3-pyridylmethyl)-4H-pyrido[3,2,1-jk]carbazole-4-one

Product 1

HCID 15521593HCID 15521593, compoundYield 37%

Reagents, catalysts & solvents 1

HCID 679Dimethyl SulfoxideSolvent

Procedure

10-bromo-2-hydroxy-5-(3-pyridylmethyl)-4H-pyrido [3,2,1-jk]carbazole-4-one (0.6 g) obtained in Example 2 was suspended in dimethyl sulfoxide (40 ml), and to the suspension was added potassium carbonate (0.8 g), and the mixture was stirred at room temperature for 30 minutes. 3-bromo-1-propanol (0.3 ml) was added and the mixture was stirred at room temperature for 12 hours. The reaction mixture was poured into ice water (500 ml), and extracted with ethyl acetate. The ethyl acetate layer was washed with saturated aqueous solution of sodium chloride, washed with anhydrous sodium sulfate, and the solvent was evaporated under reduced pressure. The residue was purified by silica gel flash column chromatography (eluent: methylene chloride containing 3% methanol) to produce the title compound (0.25 g, 37%).

Workup

  1. stirringthe mixture was stirred at room temperature for 12 hours
  2. extractionextracted with ethyl acetate
  3. washThe ethyl acetate layer was washed with saturated aqueous solution of sodium chloride
  4. washwashed with anhydrous sodium sulfate
  5. customthe solvent was evaporated under reduced pressure
  6. customThe residue was purified by silica gel flash column chromatography (eluent: methylene chloride containing 3% methanol)

Sources & evidence

ORD record
ord-2fd2a8b633354372ab9fc7afd4687d61
Source dataset
uspto-grants-2001_03
Patent number
US06197768B1

Reaction notes

Loading…