2-bromo-N-pyridin-2-yl-acetamide → (R)-1-(2-Oxo-2-(pyridin-2-ylamino)ethyl)-3-((1-phenylcycloheptane-1-carbonyl)oxy)quinuclidin-1-ium bromide

HRID 2192336Notes

Reaction equation

HRID 2192336 reaction equation
[N:1]12[CH2:8][CH2:7][CH:4]([CH2:5][CH2:6]1)[C@@H:3]([O:9][C:10]([C:12]1([C:19]3[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=3)[CH2:18][CH2:17][CH2:16][CH2:15][CH2:14][CH2:13]1)=[O:11])[CH2:2]2.[Br:25][CH2:26][C:27]([NH:29][C:30]1[CH:35]=[CH:34][CH:33]=[CH:32][N:31]=1)=[O:28]>CC#N>[Br-:25].[C:19]1([C:12]2([C:10]([O:9][C@@H:3]3[CH:4]4[CH2:7][CH2:8][N+:1]([CH2:26][C:27](=[O:28])[NH:29][C:30]5[CH:35]=[CH:34][CH:33]=[CH:32][N:31]=5)([CH2:6][CH2:5]4)[CH2:2]3)=[O:11])[CH2:18][CH2:17][CH2:16][CH2:15][CH2:14][CH2:13]2)[CH:20]=[CH:21][CH:22]=[CH:23][CH:24]=1

Participants

4

Reactant 2

HCID 34158372-bromo-N-pyridin-2-yl-acetamideHCID 591796191-Phenyl-cycloheptanecarboxylic acid (R)-(1-aza-bicyclo[2.2.2]oct-3-yl)ester

Product 1

HCID 45107359(R)-1-(2-Oxo-2-(pyridin-2-ylamino)ethyl)-3-((1-phenylcycloheptane-1-carbonyl)oxy)quinuclidin-1-ium bromideYield 49.2%

Reagents, catalysts & solvents 1

HCID 6342AcetonitrileSolvent

Procedure

1-Phenyl-cycloheptanecarboxylic acid (R)-(1-aza-bicyclo[2.2.2]oct-3-yl)ester (Example 14e) (0.79 mmol) and 2-bromo-N-pyridin-2-yl-acetamide (Example 15a) (0.87 mmol) were stirred together in anhydrous MeCN at room temperature for 2.5 days. The reaction mixture was concentrated in vacuo and the yellow solid purified by flash silica gel column chromatography eluting with 2-8% MeOH/dichloromethane to give a tan solid which crystallised from boiling MeCN to give the titled compound as a white solid (211 mg).

Workup

  1. concentrationThe reaction mixture was concentrated in vacuo
  2. customthe yellow solid purified by flash silica gel column chromatography
  3. washeluting with 2-8% MeOH/dichloromethane
  4. customto give a tan solid which
  5. customcrystallised

Sources & evidence

ORD record
ord-f3bd4431bd8445778c7fc713d6bc5038
Source dataset
uspto-grants-2012_12
Patent number
US08329729B2

Reaction notes

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