Hydrochloric Acid → 2-[(1-Methylpiperidin-4-yl)amino]-4-(trifluoromethyl)pyrimidine-5-carboxylic acid hydrochloride
Reaction equation
[CH3:1][N:2]1[CH2:7][CH2:6][CH:5]([NH:8][C:9]2[N:14]=[C:13]([C:15]([F:18])([F:17])[F:16])[C:12]([C:19]([O:21]C)=[O:20])=[CH:11][N:10]=2)[CH2:4][CH2:3]1.[ClH:23]>>[ClH:23].[CH3:1][N:2]1[CH2:7][CH2:6][CH:5]([NH:8][C:9]2[N:14]=[C:13]([C:15]([F:18])([F:16])[F:17])[C:12]([C:19]([OH:21])=[O:20])=[CH:11][N:10]=2)[CH2:4][CH2:3]1Participants
3
Procedure
A mixture of methyl 2-[(1-methylpiperidin-4-yl)amino]-4-(trifluoromethyl)pyrimidine-5-carboxylate (322 mg) and 6 M hydrochloric acid (3 mL) was stirred for 31.5 hours under heating with reflux. The reaction liquid was concentrated under reduced pressure, and the residue was solidified from a mixed solvent of diisopropyl ether and ethyl acetate, and then the obtained solid was washed with ethyl acetate to obtain 2-[(1-methylpiperidin-4-yl)-amino]-4-(trifluoromethyl)pyrimidine-5-carboxylic acid hydrochloride (297 mg) as a colorless powder.
Workup
- temperatureunder heating
- temperaturewith reflux
- customThe reaction liquid
- concentrationwas concentrated under reduced pressure
- washthe obtained solid was washed with ethyl acetate
Sources & evidence
- ORD record
- ord-6b83527200b34a14a4344290645afb7a
- Source dataset
- uspto-grants-2013_09
- Patent number
- US08524727B2
Reaction notes
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