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Cyanogen Bromide → 4-((1R,2S)-2-{2-[4-(ethylsulfonyl)-3-fluorophenoxy]ethyl}cyclopropyl)piperidine-1-carbonitrile

HRID 1850747
Notes
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Reaction equation

HRID 1850747 reaction equation
[CH2:1]([S:3]([C:6]1[CH:23]=[CH:22][C:9]([O:10][CH2:11][CH2:12][C@@H:13]2[CH2:15][C@@H:14]2[CH:16]2[CH2:21][CH2:20][NH:19][CH2:18][CH2:17]2)=[CH:8][C:7]=1[F:24])(=[O:5])=[O:4])[CH3:2].C(=O)([O-])[O-].[K+].[K+].[N:31]#[C:32]Br>C(Cl)(Cl)Cl>[CH2:1]([S:3]([C:6]1[CH:23]=[CH:22][C:9]([O:10][CH2:11][CH2:12][C@@H:13]2[CH2:15][C@@H:14]2[CH:16]2[CH2:21][CH2:20][N:19]([C:32]#[N:31])[CH2:18][CH2:17]2)=[CH:8][C:7]=1[F:24])(=[O:5])=[O:4])[CH3:2]
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 3

HCID 10476Cyanogen BromideHCID 11430Potassium CarbonateHCID 867111914-((1R,2S)-2-{2-[4-(ethylsulfonyl)-3-fluorophenoxy]ethyl}cyclopropyl)piperidine

Product 1

HCID 867111904-((1R,2S)-2-{2-[4-(ethylsulfonyl)-3-fluorophenoxy]ethyl}cyclopropyl)piperidine-1-carbonitrile

Reagents, catalysts & solvents 1

HCID 6212Chloroform
Solvent

Procedure

4-((1R,2S)-2-{2-[4-(ethylsulfonyl)-3-fluorophenoxy]ethyl}cyclopropyl)piperidine (Step C, Example 111; 150 mg, 0.428 mmol) and potassium carbonate (244 mg, 1.77 mmol) were stirred in chloroform (7 mL). Cyanogen bromide (61 mg, 0.58 mmol) was added. The mixture was stirred at RT for 15 min and refluxed overnight. The mixture was cooled to RT, mixed with silica gel (5 g), and concentrated to dryness under reduced pressure. The residue was loaded on a silica gel column (15 g of silica gel) and eluted with dichloromethane/methanol (97.5:2.5, 1 L to provide the title compound as an white solid. MS (Multimode) m/z 381 [M+H]+.

Workup

  1. temperaturerefluxed overnight
  2. temperatureThe mixture was cooled to RT
  3. additionmixed with silica gel (5 g)
  4. concentrationconcentrated to dryness under reduced pressure
  5. washeluted with dichloromethane/methanol (97.5:2.5, 1 L

Sources & evidence

ORD record
ord-9d95e8c41a1e4d25ae907b40a49ce821
Source dataset
uspto-grants-2015_02
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US08957062B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes