HCID 136359502, compound → 4-[6-(4-hydroxy-phenyl)-3-phenethyl-1-(tetrahydro-pyran-2-yl)-1H-pyrazolo[3,4-b]pyridine-4-carbonyl]-piperazine-1-carboxylic acid tert-butyl ester

HRID 82037Notes

Reaction equation

HRID 82037 reaction equation
[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][N:11]([C:14]([C:16]2[C:17]3[C:31](/[CH:32]=[CH:33]/[C:34]4[CH:39]=[CH:38][CH:37]=[CH:36][CH:35]=4)=[N:30][N:29]([CH:40]4[CH2:45][CH2:44][CH2:43][CH2:42][O:41]4)[C:18]=3[N:19]=[C:20]([C:22]3[CH:27]=[CH:26][C:25]([OH:28])=[CH:24][CH:23]=3)[CH:21]=2)=[O:15])[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2]>CO.[Pd]>[C:1]([O:5][C:6]([N:8]1[CH2:9][CH2:10][N:11]([C:14]([C:16]2[C:17]3[C:31]([CH2:32][CH2:33][C:34]4[CH:39]=[CH:38][CH:37]=[CH:36][CH:35]=4)=[N:30][N:29]([CH:40]4[CH2:45][CH2:44][CH2:43][CH2:42][O:41]4)[C:18]=3[N:19]=[C:20]([C:22]3[CH:23]=[CH:24][C:25]([OH:28])=[CH:26][CH:27]=3)[CH:21]=2)=[O:15])[CH2:12][CH2:13]1)=[O:7])([CH3:4])([CH3:2])[CH3:3]

Participants

4

Reactant 1

HCID 136359502HCID 136359502, compound

Product 1

HCID 1363595014-[6-(4-hydroxy-phenyl)-3-phenethyl-1-(tetrahydro-pyran-2-yl)-1H-pyrazolo[3,4-b]pyridine-4-carbonyl]-piperazine-1-carboxylic acid tert-butyl esterYield 96.5%

Reagents, catalysts & solvents 2

HCID 23938PalladiumCatalystHCID 887MethanolSolvent

Procedure

To a solution of 4-[6-(4-hydroxy-phenyl)-3-((E)-styryl)-1-(tetrahydro-pyran-2-yl)-1H-pyrazolo[3,4-b]pyridine-4-carbonyl]-piperazine-1-carboxylic acid tert-butyl ester (0.74 g, 1.22 mmol) in dry methanol (40 ml) was added Pd/C (150 mg). The reaction mixture was stirred under a hydrogen atmosphere for 1 hour, filtered and concentrated under reduced pressure. The crude residue was taken in dry methanol (30 ml) and Pd/C (150 mg) was added. The mixture was submitted to a hydrogen pressure of 1 bar and was stirred for 1 hour, filtered and concentrated under vacuum to yield the title compound (0.72 g, 96%).

Workup

  1. filtrationfiltered
  2. concentrationconcentrated under reduced pressure
  3. additionPd/C (150 mg) was added
  4. stirringwas stirred for 1 hour
  5. filtrationfiltered
  6. concentrationconcentrated under vacuum

Sources & evidence

ORD record
ord-80cec87d738d4b85a3d416b238638441
Source dataset
uspto-grants-2014_09
Patent number
US08846712B2

Reaction notes

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