Water → 4-(7-bromo-1-cyclopentyl-4-methoxy-1H-pyrazolo[4,3-c]pyridin-3-yl)thiophene-2-carboxamide
Reaction equation
[Br:1][C:2]1[C:3]2[N:12]([CH:13]3[CH2:17][CH2:16][CH2:15][CH2:14]3)[N:11]=[C:10]([C:18]3[CH:19]=[C:20]([C:23]([OH:25])=O)[S:21][CH:22]=3)[C:4]=2[C:5]([O:8][CH3:9])=[N:6][CH:7]=1.CC[N:28]=C=NCCCN(C)C.Cl.O>CN(C=O)C>[Br:1][C:2]1[C:3]2[N:12]([CH:13]3[CH2:14][CH2:15][CH2:16][CH2:17]3)[N:11]=[C:10]([C:18]3[CH:19]=[C:20]([C:23]([NH2:28])=[O:25])[S:21][CH:22]=3)[C:4]=2[C:5]([O:8][CH3:9])=[N:6][CH:7]=1Participants
5
Reactant 3
Product 1
Reagents, catalysts & solvents 1
Procedure
A solution of 4-(7-bromo-1-cyclopentyl-4-methoxy-1H-pyrazolo[4,3-c]pyridin-3-yl)thiophene-2-carboxylic acid (100 mg), HOBt ammonium salt (227 mg) and EDCI hydrochloride (180 mg) in DMF (15 mL) was stirred overnight at room temperature. To the reaction mixture was added water, and the mixture was extracted with ethyl acetate. The organic layer was washed successively with water and saturated brine, dried over anhydrous sodium sulfate, and concentrated under reduced pressure. The residue was purified by silica gel column chromatography (ethyl acetate/hexane/methanol) to give the title compound (88 mg).
Workup
- extractionthe mixture was extracted with ethyl acetate
- washThe organic layer was washed successively with water and saturated brine
- dry with materialdried over anhydrous sodium sulfate
- concentrationconcentrated under reduced pressure
- customThe residue was purified by silica gel column chromatography (ethyl acetate/hexane/methanol)
Sources & evidence
- ORD record
- ord-4ef3e6d0b3d6400da375c534a430704d
- Source dataset
- uspto-grants-2016_06
- Patent number
- US09371320B2
Reaction notes
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