HCID 68295200, compound → HCID 68295318, compound

HRID 1909171Notes

Reaction equation

HRID 1909171 reaction equation
[OH:1][CH2:2][C:3]1[CH:4]=[C:5]([C:9]2[CH:10]=[C:11]([C:21]([O:23]CC)=[O:22])[C:12]3[CH:17]=[N:16][N:15]([CH:18]([CH3:20])[CH3:19])[C:13]=3[N:14]=2)[CH:6]=[CH:7][CH:8]=1>C(O)C>[OH:1][CH2:2][C:3]1[CH:4]=[C:5]([C:9]2[CH:10]=[C:11]([C:21]([OH:23])=[O:22])[C:12]3[CH:17]=[N:16][N:15]([CH:18]([CH3:20])[CH3:19])[C:13]=3[N:14]=2)[CH:6]=[CH:7][CH:8]=1

Participants

3

Reactant 1

HCID 68295200HCID 68295200, compound

Product 1

HCID 68295318HCID 68295318, compound

Reagents, catalysts & solvents 1

HCID 702EthanolSolvent2×

Conditions

Temperature
60 °C

Procedure

To a solution of ethyl 6-(3-(hydroxymethyl)phenyl)-1-isopropyl-1H-pyrazolo[3,4-b]pyridine-4-carboxylate (0.81 g, 2.38 mmol) in EtOH (15 mL) aqueous NaOH (0.47 g, 11.94 mmol) was added and stirred at 60° C. for 1 h. After completion of the reaction, ethanol was removed under reduced pressure and it was acidified using 10% citric acid solution till pH 4. Extraction was carried out using 5% MeOH/DCM, the combined organic layers were washed with water & dried over anhydrous Na2SO4; filtered and concentrated under reduced pressure to afford the desired acid which was used without further purification.

Workup

  1. customwas removed under reduced pressure and it
  2. extractionExtraction
  3. washthe combined organic layers were washed with water
  4. dry with materialdried over anhydrous Na2SO4
  5. filtrationfiltered
  6. concentrationconcentrated under reduced pressure

Sources & evidence

ORD record
ord-4a6f69625c684307a16c940f5698005e
Source dataset
uspto-grants-2013_12
Patent number
US08598167B1

Reaction notes

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