Water → HCID 68295306, compound

HRID 1909306Notes

Reaction equation

HRID 1909306 reaction equation
[CH:1]1([N:6]2[C:14]3[CH:13]=[C:12]([C:15]4[CH:20]=[CH:19][C:18]([OH:21])=[CH:17][CH:16]=4)[CH:11]=[C:10]([C:22]([O:24][CH3:25])=[O:23])[C:9]=3[CH:8]=[N:7]2)[CH2:5][CH2:4][CH2:3][CH2:2]1.Br[CH2:27][CH2:28][CH2:29][OH:30].C([O-])([O-])=O.[K+].[K+].O>CN(C=O)C>[CH:1]1([N:6]2[C:14]3[CH:13]=[C:12]([C:15]4[CH:20]=[CH:19][C:18]([O:21][CH2:27][CH2:28][CH2:29][OH:30])=[CH:17][CH:16]=4)[CH:11]=[C:10]([C:22]([O:24][CH3:25])=[O:23])[C:9]=3[CH:8]=[N:7]2)[CH2:2][CH2:3][CH2:4][CH2:5]1

Participants

6

Reactant 4

HCID 962WaterHCID 11430Potassium CarbonateHCID 123083-Bromo-1-propanolHCID 136344377HCID 136344377, compound

Product 1

HCID 68295306HCID 68295306, compoundYield 68.5%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Conditions

Temperature
100 °C

Procedure

To a stirred solution of methyl 1-cyclopentyl-6-(4-hydroxyphenyl)-1H-indazole-4-carboxylate (0.5 g, 1.48 mmol) in DMF (15 mL), 3-bromopropane-1-ol (0.616 g, 4.46 mmol) and K2CO3 (0.306 g, 2.23 mmol) were added, resulting reaction mass was heated at 100° C. for 4 h. On completion, water was added to reaction mass and extracted with ethyl acetate. Combined organic layers were dried and concentrated under reduced pressure giving crude material which was purified by column chromatography over silica gel (60-120 mesh size) to afford methyl 1-cyclopentyl-6-(4-(3-hydroxypropoxy)phenyl)-1H-indazole-4-carboxylate (0.4 g, 68.2%).

Workup

  1. customresulting
  2. customreaction mass
  3. extractionextracted with ethyl acetate
  4. customCombined organic layers were dried
  5. concentrationconcentrated under reduced pressure
  6. customgiving crude material which
  7. customwas purified by column chromatography over silica gel (60-120 mesh size)

Sources & evidence

ORD record
ord-5361a5b6eafb4a3c8b5f530c5f3ebcfc
Source dataset
uspto-grants-2013_12
Patent number
US08598167B1

Reaction notes

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