ethyl 1-(4-methoxyphenyl)-7-oxo-6-(4-(2-oxo-1-piperidinyl)phenyl)-4,5,6,7-tetrahydro-1H-pyrazolo[3,4-c]pyridine-3-carboxylate → 3-(1-Hydroxy-1-methyl-ethyl)-1-(4-methoxy-phenyl)-6-[4-(2-oxo-piperidin-1-yl)-phenyl]-1,4,5,6-tetrahydropyrazolo[3,4-c]pyridin-7-one

HRID 892327Notes

Reaction equation

HRID 892327 reaction equation
C(OC([C:6]1[C:14]2[CH2:13][CH2:12][N:11]([C:15]3[CH:20]=[CH:19][C:18]([N:21]4[CH2:26][CH2:25][CH2:24][CH2:23][C:22]4=[O:27])=[CH:17][CH:16]=3)[C:10](=[O:28])[C:9]=2[N:8]([C:29]2[CH:34]=[CH:33][C:32]([O:35][CH3:36])=[CH:31][CH:30]=2)[N:7]=1)=O)C.C[Mg+].[Br-]>C1COCC1>[OH:35][C:32]([C:6]1[C:14]2[CH2:13][CH2:12][N:11]([C:15]3[CH:20]=[CH:19][C:18]([N:21]4[CH2:26][CH2:25][CH2:24][CH2:23][C:22]4=[O:27])=[CH:17][CH:16]=3)[C:10](=[O:28])[C:9]=2[N:8]([C:29]2[CH:34]=[CH:33][C:32]([O:35][CH3:36])=[CH:31][CH:30]=2)[N:7]=1)([CH3:33])[CH3:31]

Participants

4

Reactant 2

HCID 22240488ethyl 1-(4-methoxyphenyl)-7-oxo-6-(4-(2-oxo-1-piperidinyl)phenyl)-4,5,6,7-tetrahydro-1H-pyrazolo[3,4-c]pyridine-3-carboxylateHCID 178418689HCID 178418689, compound

Product 1

HCID 222404203-(1-Hydroxy-1-methyl-ethyl)-1-(4-methoxy-phenyl)-6-[4-(2-oxo-piperidin-1-yl)-phenyl]-1,4,5,6-tetrahydropyrazolo[3,4-c]pyridin-7-oneYield 99%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

To 1-(4-methoxy-phenyl)-7-oxo-6-[4-(2-oxo-piperidin-1-yl)-phenyl]-4,5,6,7-tetrahydro-1H-pyrazolo[3,4-c]pyridine-3-carboxylic acid ethyl ester (0.1, 0.2 mmol) in THF (15 mL) at 0° C. was added MeMgBr (0.21 mL, 0.6 mmol) and the reaction was stirred at rt for 24 h. The reaction was quenched with water and purified by HPLC to afford 47 mg (48%) of a white solid; Mass Spec (M+H)+ 475.

Workup

  1. customThe reaction was quenched with water
  2. custompurified by HPLC

Sources & evidence

ORD record
ord-a0d59c167c6944868fec46997d594717
Source dataset
uspto-grants-2006_02
Patent number
US07005435B2

Reaction notes

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