Sodium ethanethiolate → (3S,5R,6S)-3-Allyl-5-(3-chlorophenyl)-6-(4-chlorophenyl)-1-((S)-1-(ethylthio)butan-2-yl)-3-methylpiperidin-2-one
Reaction equation
FC(F)(F)S([O-])(=O)=O.[CH2:9]([C@@:12]1([CH3:37])[CH2:17][C@H:16]([C:18]2[CH:23]=[CH:22][CH:21]=[C:20]([Cl:24])[CH:19]=2)[C@@H:15]([C:25]2[CH:30]=[CH:29][C:28]([Cl:31])=[CH:27][CH:26]=2)[N+:14]2[C@@H:32]([CH2:35][CH3:36])[CH2:33][O:34][C:13]1=2)[CH:10]=[CH2:11].[CH2:38]([S-:40])[CH3:39].[Na+]>CN(C=O)C>[CH2:9]([C@@:12]1([CH3:37])[CH2:17][C@H:16]([C:18]2[CH:23]=[CH:22][CH:21]=[C:20]([Cl:24])[CH:19]=2)[C@@H:15]([C:25]2[CH:30]=[CH:29][C:28]([Cl:31])=[CH:27][CH:26]=2)[N:14]([C@@H:32]([CH2:35][CH3:36])[CH2:33][S:40][CH2:38][CH3:39])[C:13]1=[O:34])[CH:10]=[CH2:11]Participants
4
Conditions
- Temperature
- 25 °C
Procedure
To a solution of (3S,5S,6R,8S)-8-allyl-6-(3-chlorophenyl)-5-(4-chlorophenyl)-3-ethyl-8-methyl-2,3,5,6,7,8-hexahydrooxazolo[3,2-a]pyridin-4-ium trifluoromethanesulfonate (86 mg, 0.15 mmol; Example 339, Step A) in DMF (0.74 ml) was added sodium ethanethiolate (38 mg, 0.45 mmol). After being stirred at 25° C. for 1.5 h, the reaction was quenched (sat. aq. NH4Cl), extracted (2×EtOAc), and washed (2× brine). The combined organic layers were dried over Na2SO4, filtered and the filtrate was concentrated under reduced pressure. Purification of the residue by chromatography on silica gel (12 g SiO2, 10% and 20% EtOAc/hex) provided the title compound as a colorless liquid.
Workup
- customthe reaction was quenched (sat. aq. NH4Cl)
- extractionextracted (2×EtOAc)
- washwashed (2× brine)
- dry with materialThe combined organic layers were dried over Na2SO4
- filtrationfiltered
- concentrationthe filtrate was concentrated under reduced pressure
- customPurification of the residue by chromatography on silica gel (12 g SiO2, 10% and 20% EtOAc/hex)
Sources & evidence
- ORD record
- ord-c3494f4a5c80426084e41598706ce745
- Source dataset
- uspto-grants-2016_03
- Patent number
- US09296736B2
Reaction notes
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