Water → Methanesulfonic acid 1-pyrimidin-2-yl-piperidin-4-yl ester
Reaction equation
[N:1]1[CH:6]=[CH:5][CH:4]=[N:3][C:2]=1[N:7]1[CH2:12][CH2:11][CH:10]([OH:13])[CH2:9][CH2:8]1.C(N(CC)CC)C.[CH3:21][S:22](Cl)(=[O:24])=[O:23].O>ClCCl>[N:1]1[CH:6]=[CH:5][CH:4]=[N:3][C:2]=1[N:7]1[CH2:8][CH2:9][CH:10]([O:13][S:22]([CH3:21])(=[O:24])=[O:23])[CH2:11][CH2:12]1Participants
6
Procedure
To a cooled solution of 1-Pyrimidin-2-yl-piperidin-4-ol (WO2008/8895 A1), (100 mg; 0.55 mmol) and triethylamine (233 μL, 1.67 mmol) in dry dichloromethane (1 mL), was added methanesulfonyl chloride (52 μL, 0.67 mmol). The reaction mixture was stirred at room temperature for 5 hours. Water was added. After extraction with dichloromethane, the combined organic extracts were dried over sodium sulfate and concentrated to afford a crude product that was used in the next step without further purification.
Workup
- extractionAfter extraction with dichloromethane
- dry with materialthe combined organic extracts were dried over sodium sulfate
- concentrationconcentrated
Sources & evidence
- ORD record
- ord-eaf8a611c1f04dc9a9b81630d20d065e
- Source dataset
- uspto-grants-2015_02
- Patent number
- US08962627B2
Reaction notes
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