Ethanesulfonylchloride, 2-chloro- → HCID 22914660, compound
Reaction equation
Cl[CH2:2][CH2:3][S:4](Cl)(=[O:6])=[O:5].[NH:8]1[CH2:13][CH2:12][CH:11]([O:14][C:15]2[CH:39]=[CH:38][C:18]([C:19]([N:21]3[CH2:26][CH2:25][CH:24]([N:27]4[C:36]5[C:31](=[CH:32][CH:33]=[CH:34][CH:35]=5)[CH2:30][CH2:29][C:28]4=[O:37])[CH2:23][CH2:22]3)=[O:20])=[C:17]([O:40][CH3:41])[CH:16]=2)[CH2:10][CH2:9]1.CCN(C(C)C)C(C)C.S(Cl)(Cl)(=O)=O>C(Cl)Cl>[CH:3]([S:4]([N:8]1[CH2:13][CH2:12][CH:11]([O:14][C:15]2[CH:39]=[CH:38][C:18]([C:19]([N:21]3[CH2:22][CH2:23][CH:24]([N:27]4[C:36]5[C:31](=[CH:32][CH:33]=[CH:34][CH:35]=5)[CH2:30][CH2:29][C:28]4=[O:37])[CH2:25][CH2:26]3)=[O:20])=[C:17]([O:40][CH3:41])[CH:16]=2)[CH2:10][CH2:9]1)(=[O:6])=[O:5])=[CH2:2]Participants
Conditions
- Temperature
- 0 °C
Procedure
To a 25 mL flask containing 3 mL of methylene chloride was added 2-chloro-1-ethanesulfonyl chloride (0.046 mL, 0.44 mmol) and the solution was cooled to 0° C. under N2. To a 10 mL addition funnel containing 8 mL of methylene chloride was added 1-(1-(4-(4-piperidinyloxy)-2-methoxybenzoyl)piperidin-4-yl)-3,4-dihydro-2(1H)-quinolinone (200 mg, 0.4 mmol) from Example 190 and DIEA (0.35 mL, 2.0 mmol). This solution was added slowly over 15 min to the cold, stirred solution of sulfonyl chloride. The reaction mixture was stirred at 0° C. for 30 min and then at ambient temperature for 16 hrs. The solvent was removed under reduced pressure and the residue was partitioned between ethyl acetate and water. The layers were separated and aqueous phase was extracted with ethyl acetate (3×). The combined organic phases were dried over MgSO4 and filtered. The solvent was removed under reduced pressure and the residue purified by pressurized silica gel column chromatography using 95:5 CH2Cl2 :MeOH as eluant. The product-containing fractions were combined and the solvent was removed under reduced pressure to give the title compound as an amorphous solid.
Workup
- additionTo a 10 mL addition funnel
- additionThis solution was added slowly over 15 min to the cold
- waitat ambient temperature for 16 hrs
- customThe solvent was removed under reduced pressure
- customthe residue was partitioned between ethyl acetate and water
- customThe layers were separated
- extractionaqueous phase was extracted with ethyl acetate (3×)
- dry with materialThe combined organic phases were dried over MgSO4
- filtrationfiltered
- customThe solvent was removed under reduced pressure
- customthe residue purified by pressurized silica gel column chromatography
- customthe solvent was removed under reduced pressure
Sources & evidence
- ORD record
- ord-ebe683f0ccc9439e9086d83e4f56f1fd
- Source dataset
- uspto-grants-1997_09
- Patent number
- US05665719
Reaction notes
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