Sodium Hydroxide → tert-butyl [(1R)-1-(1-naphthyl)ethyl]{[(3R,4S)-4-phenylpyrrolidin-3-yl]methyl}carbamate

HRID 732623Notes

Reaction equation

HRID 732623 reaction equation
[C:1]1([C@H:11]([N:13]([CH2:21][C@@H:22]2[C@@H:26]([C:27]3[CH:32]=[CH:31][CH:30]=[CH:29][CH:28]=3)[CH2:25][N:24](C(=O)C(F)(F)F)[CH2:23]2)[C:14](=[O:20])[O:15][C:16]([CH3:19])([CH3:18])[CH3:17])[CH3:12])[C:10]2[C:5](=[CH:6][CH:7]=[CH:8][CH:9]=2)[CH:4]=[CH:3][CH:2]=1.[OH-].[Na+]>C1COCC1.CO>[C:1]1([C@H:11]([N:13]([CH2:21][C@@H:22]2[C@@H:26]([C:27]3[CH:28]=[CH:29][CH:30]=[CH:31][CH:32]=3)[CH2:25][NH:24][CH2:23]2)[C:14](=[O:20])[O:15][C:16]([CH3:18])([CH3:19])[CH3:17])[CH3:12])[C:10]2[C:5](=[CH:6][CH:7]=[CH:8][CH:9]=2)[CH:4]=[CH:3][CH:2]=1

Participants

4

Reactant 2

HCID 14798Sodium HydroxideHCID 86628526tert-butyl [(1R)-1-(1-naphthyl)ethyl]{[(3R,4S)-4-phenyl-1-(trifluoroacetyl)pyrrolidin-3-yl]methyl}carbamate

Product 1

HCID 86628525tert-butyl [(1R)-1-(1-naphthyl)ethyl]{[(3R,4S)-4-phenylpyrrolidin-3-yl]methyl}carbamate

Reagents, catalysts & solvents 1

HCID 21899815MeOH tetrahydrofuranSolvent

Procedure

A 9.27 g portion of tert-butyl [(1R)-1-(1-naphthyl)ethyl]{[(3R,4S)-4-phenyl-1-(trifluoroacetyl)pyrrolidin-3-yl]methyl}carbamate was dissolved in 105 ml of THF-methanol (2:1), mixed with 35 ml of 1 M sodium hydroxide aqueous solution and stirred at room temperature for 1Hour. The reaction solution was concentrated under a reduced pressure, the residue was mixed with water and extracted with chloroform, and the organic layer was dried with anhydrous sodium sulfate. This was concentrated under a reduced pressure, and the thus obtained residue was purified by a silica gel column chromatography (chloroform-methanol-aqueous ammonia) to obtain 6.97 g of tert-butyl [(1R)-1-(1-naphthyl)ethyl]{[(3R,4S)-4-phenylpyrrolidin-3-yl]methyl}carbamate as a colorless oily substance. FP: 431, NMR 1 (80° C.): 1.42 (9H, s), 1.45-1.55 (1H, m), 1.48 (3H, d, J=6.8 Hz), 2.23-2.30 (1H, m), 2.30-2.38 (1H, m), 2.48-2.57 (2H, m), 2.82-2.88 (1H, m), 2.87-2.92 (1H, m), 2.96-3.03 (1H, m), 5.95 (1H, q, J=6.8 Hz), 6.70-6.76 (2H, m), 7.04-7.17 (3H, m), 7.37 (1H, t, J=7.6 Hz), 7.39 (1H, m), 7.47-7.54 (2H, m), 7.81 (1H, m), 7.88-7.94 (1H, m), 8.02-8.09 (1H, m).

Workup

  1. concentrationThe reaction solution was concentrated under a reduced pressure
  2. additionthe residue was mixed with water
  3. extractionextracted with chloroform
  4. dry with materialthe organic layer was dried with anhydrous sodium sulfate
  5. concentrationThis was concentrated under a reduced pressure
  6. customthe thus obtained residue was purified by a silica gel column chromatography (chloroform-methanol-aqueous ammonia)

Sources & evidence

ORD record
ord-74c9c6dbfb7b45809db5df4931692d5b
Source dataset
uspto-grants-2009_09
Patent number
US07585886B2

Reaction notes

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