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Sodium Iodide → 4-(7-cyano-1-cyclopentyl-4-oxo-4,5-dihydro-1H-pyrazolo[4,3-c]pyridin-3-yl)thiophene-2-carboxamide

HRID 2206169
Notes
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Reaction equation

HRID 2206169 reaction equation
[C:1]([C:3]1[C:4]2[N:13]([CH:14]3[CH2:18][CH2:17][CH2:16][CH2:15]3)[N:12]=[C:11]([C:19]3[CH:20]=[C:21]([C:24]([NH2:26])=[O:25])[S:22][CH:23]=3)[C:5]=2[C:6]([O:9]C)=[N:7][CH:8]=1)#[N:2].[I-].[Na+].Cl[Si](C)(C)C>C(#N)C>[C:1]([C:3]1[C:4]2[N:13]([CH:14]3[CH2:18][CH2:17][CH2:16][CH2:15]3)[N:12]=[C:11]([C:19]3[CH:20]=[C:21]([C:24]([NH2:26])=[O:25])[S:22][CH:23]=3)[C:5]=2[C:6](=[O:9])[NH:7][CH:8]=1)#[N:2]
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 3

HCID 5238Sodium IodideHCID 6397ChlorotrimethylsilaneHCID 1179877154-(7-cyano-1-cyclopentyl-4-methoxy-1H-pyrazolo[4,3-c]pyridin-3-yl)thiophene-2-carboxamide

Product 1

HCID 1370106974-(7-cyano-1-cyclopentyl-4-oxo-4,5-dihydro-1H-pyrazolo[4,3-c]pyridin-3-yl)thiophene-2-carboxamideYield 98.1%

Reagents, catalysts & solvents 1

HCID 6342
Acetonitrile
Solvent

Conditions

Temperature
60 °C

Procedure

To a solution of 4-(7-cyano-1-cyclopentyl-4-methoxy-1H-pyrazolo[4,3-c]pyridin-3-yl)thiophene-2-carboxamide (53.3 mg) in acetonitrile (10 mL) were added sodium iodide (43.5 mg) and chloro(trimethyl)silane (0.147 mL), and the mixture was stirred at 60° C. for 30 min. The reaction mixture was concentrated under reduced pressure, and the residue was washed successively with water and ethyl acetate to give the title compound (50.3 mg).

Workup

  1. concentrationThe reaction mixture was concentrated under reduced pressure
  2. washthe residue was washed successively with water and ethyl acetate

Sources & evidence

ORD record
ord-2be2cd54110e4bd7aeecf9d09a8ba579
Source dataset
uspto-grants-2016_06
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US09371320B2

Reaction notes

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On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes