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1,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochloride → 4-(1-(2,6-difluorophenyl)-4-oxo-4,5-dihydro-1H-pyrazolo[4,3-c]pyridin-3-yl)thiophene-2-carboxamide

HRID 2206057
Notes
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Reaction equation

HRID 2206057 reaction equation
[F:1][C:2]1[CH:7]=[CH:6][CH:5]=[C:4]([F:8])[C:3]=1[N:9]1[C:17]2[CH:16]=[CH:15][NH:14][C:13](=[O:18])[C:12]=2[C:11]([C:19]2[CH:20]=[C:21]([C:24](O)=[O:25])[S:22][CH:23]=2)=[N:10]1.CC[N:29]=C=NCCCN(C)C.Cl>CC(N(C)C)=O.O>[F:8][C:4]1[CH:5]=[CH:6][CH:7]=[C:2]([F:1])[C:3]=1[N:9]1[C:17]2[CH:16]=[CH:15][NH:14][C:13](=[O:18])[C:12]=2[C:11]([C:19]2[CH:20]=[C:21]([C:24]([NH2:29])=[O:25])[S:22][CH:23]=2)=[N:10]1
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 2

HCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 1370107854-(1-(2,6-difluorophenyl)-4-oxo-4,5-dihydro-1H-pyrazolo[4,3-c]pyridin-3-yl)thiophene-2-carboxylic acid

Product 1

HCID 1370106054-(1-(2,6-difluorophenyl)-4-oxo-4,5-dihydro-1H-pyrazolo[4,3-c]pyridin-3-yl)thiophene-2-carboxamideYield 70.9%

Reagents, catalysts & solvents 2

HCID 962Water
Solvent
HCID 31374DimethylacetamideSolvent

Procedure

To a solution of 4-(1-(2,6-difluorophenyl)-4-oxo-4,5-dihydro-1H-pyrazolo[4,3-c]pyridin-3-yl)thiophene-2-carboxylic acid (30.0 mg) obtained in Example 37 in DMA (2 mL) were added EDCI hydrochloride (18.5 mg) and HOBt ammonium salt (14.7 mg) at room temperature, and the mixture was stirred overnight at room temperature. The reaction mixture was diluted with water, the mixture was extracted with ethyl acetate, and the organic layer was washed with saturated brine, dried over anhydrous magnesium sulfate, filtered, and concentrated under reduced pressure. The obtained residue was purified by silica gel column chromatography (basic silica gel, hexane/ethyl acetate to ethyl acetate) to give the title compound (21.2 mg).

Workup

  1. extractionthe mixture was extracted with ethyl acetate
  2. washthe organic layer was washed with saturated brine
  3. dry with materialdried over anhydrous magnesium sulfate
  4. filtrationfiltered
  5. concentrationconcentrated under reduced pressure
  6. customThe obtained residue was purified by silica gel column chromatography (basic silica gel, hexane/ethyl acetate to ethyl acetate)

Sources & evidence

ORD record
ord-29fc00e7360a4004b7a1afa01cfb9493
Source dataset
uspto-grants-2016_06
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US09371320B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes