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Potassium Carbonate → (2S)-1-[N-(2-phenylhexahydro-2,5-methanopentalen-3a(1H)-yl)glycyl]pyrrolidine-2-carbonitrile

HRID 1015569
Notes
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Reaction equation

HRID 1015569 reaction equation
[C:1]1([C:7]23[CH2:15][CH:11]4[CH2:12][CH:13]([CH2:14]2)[C:9]([NH2:16])([CH2:10]4)[CH2:8]3)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.C([O-])([O-])=O.[K+].[K+].Cl[CH2:24][C:25]([N:27]1[CH2:31][CH2:30][CH2:29][C@H:28]1[C:32]#[N:33])=[O:26]>CS(C)=O.CCOC(C)=O>[C:1]1([C:7]23[CH2:15][CH:11]4[CH2:10][C:9]([NH:16][CH2:24][C:25]([N:27]5[CH2:31][CH2:30][CH2:29][C@H:28]5[C:32]#[N:33])=[O:26])([CH2:8]2)[CH:13]([CH2:12]4)[CH2:14]3)[CH:2]=[CH:3][CH:4]=[CH:5][CH:6]=1
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

6

Reactant 3

HCID 11430Potassium CarbonateHCID 11073883(2S)-1-(2-chloroacetyl)pyrrolidine-2-carbonitrileHCID 593749631-Phenyltricyclo[3.3.1.03,7]nonan-3-amine

Product 1

HCID 24853441(2S)-1-[N-(2-phenylhexahydro-2,5-methanopentalen-3a(1H)-yl)glycyl]pyrrolidine-2-carbonitrileYield 48.7%

Reagents, catalysts & solvents 2

HCID 679
Dimethyl Sulfoxide
Solvent
HCID 8857Ethyl AcetateSolvent

Procedure

To a stirred mixture of the compound obtained from step II (0.2 g, 0.94 mmol) and K2CO3 (0.39 g, 2.8 mmol) in DMSO (4.0 mL) at ice bath temperature under nitrogen atmosphere (S)-1-(2-chloro-acetyl)pyrrolidine-2-carbonitrile (0.16 g, 0.94 mmol) was added. After stirring the reaction mixture for 3 h at r.t., it was diluted with EtOAc and washed with water and brine, dried over Na2SO4, and the solvent was removed under reduced pressure. The crude product was purified by column chromatography to obtain (2S)-1-[N-(2-phenylhexahydro-2,5-methanopentalen-3a(1H)-yl)glycyl]pyrrolidine-2-carbonitrile as off-white solid (0.16 g) in 48% yield. m/z (M+1) 350; 1H NMR (CDCl3) 300 MHz δ 7.35-7.16 (m, 5H), 4.4.85-4.76 (m, 1H), 3.76-3.40 (m, 2H), 3.50 (s, 2H), 2.48-2.41 (m, 1H), 2.36-2.27 (m, 2H), 2.23-2.0 (m, 6H), 1.94-1.68 (m, 4H), 1.66-1.60 (m, 1H).

Workup

  1. additionwas added
  2. washwashed with water and brine
  3. dry with materialdried over Na2SO4
  4. customthe solvent was removed under reduced pressure
  5. customThe crude product was purified by column chromatography

Sources & evidence

ORD record
ord-c68461ffca414bf899641e1d4c970214
Source dataset
uspto-grants-2011_07
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US07985759B2

Reaction notes

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