Hydrochloric Acid → HCID 135482311, compound
Reaction equation
Cl[C:2]1[C:11]2[C:6](=[CH:7][C:8]([F:13])=[C:9]([F:12])[CH:10]=2)[N:5]=[C:4]2[N:14]([C:18]3[CH:23]=[CH:22][CH:21]=[CH:20][N:19]=3)[N:15]=[C:16]([CH3:17])[C:3]=12.Cl.C([OH:27])C>>[F:12][C:9]1[CH:10]=[C:11]2[C:6](=[CH:7][C:8]=1[F:13])[NH:5][C:4]1[N:14]([C:18]3[CH:23]=[CH:22][CH:21]=[CH:20][N:19]=3)[N:15]=[C:16]([CH3:17])[C:3]=1[C:2]2=[O:27]Participants
4
Procedure
To a solution of 4-chloro-6,7-difluoro-3-methyl-1-(2-pyridinyl)-1H-pyrazolo[3,4-b]quinoline (2.21 g, 6.68 mmol) in ethanol (120 mL), 6N hydrochloric acid (6 mL, 36.0 mmol) was added and the mixture was heated under reflux for 3 hours. The solution was allowed to cool to room temperature, and the resulting crystals were collected by filtration. The crystals were washed with ethanol and air dried to give the title compound (2.08 g, 99% yield).
Workup
- temperaturethe mixture was heated
- temperatureunder reflux for 3 hours
- filtrationthe resulting crystals were collected by filtration
- washThe crystals were washed with ethanol and air
- customdried
Sources & evidence
- ORD record
- ord-974d0cf09a2a41c18d30d3a0dfa66f65
- Source dataset
- uspto-grants-2005_09
- Patent number
- US06949648B2
Reaction notes
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