Trifluoroacetic acid → (R)-3-((S)-2-amino-phenylpropanoyloxy)-1-(2-phenoxyethyl)-1-azonia-bicyclo[2.2.2]octane trifluoroacetate trifluoroacetate

HRID 1255064Notes

Reaction equation

HRID 1255064 reaction equation
[Br-].C(OC([NH:9][C@@H:10]([CH2:31][C:32]1[CH:37]=[CH:36][CH:35]=[CH:34][CH:33]=1)[C:11]([O:13][C@@H:14]1[CH:19]2[CH2:20][CH2:21][N+:16]([CH2:22][CH2:23][O:24][C:25]3[CH:30]=[CH:29][CH:28]=[CH:27][CH:26]=3)([CH2:17][CH2:18]2)[CH2:15]1)=[O:12])=O)(C)(C)C.[F:38][C:39]([F:44])([F:43])[C:40]([OH:42])=[O:41]>C(Cl)Cl>[F:38][C:39]([F:44])([F:43])[C:40]([O-:42])=[O:41].[F:38][C:39]([F:44])([F:43])[C:40]([O-:42])=[O:41].[NH2:9][C@@H:10]([CH2:31][C:32]1[CH:33]=[CH:34][CH:35]=[CH:36][CH:37]=1)[C:11]([O:13][C@@H:14]1[CH:19]2[CH2:20][CH2:21][N+:16]([CH2:22][CH2:23][O:24][C:25]3[CH:26]=[CH:27][CH:28]=[CH:29][CH:30]=3)([CH2:17][CH2:18]2)[CH2:15]1)=[O:12].[NH2:9][C@@H:10]([CH2:31][C:32]1[CH:33]=[CH:34][CH:35]=[CH:36][CH:37]=1)[C:11]([O:13][C@@H:14]1[CH:19]2[CH2:20][CH2:21][N+:16]([CH2:22][CH2:23][O:24][C:25]3[CH:26]=[CH:27][CH:28]=[CH:29][CH:30]=3)([CH2:17][CH2:18]2)[CH2:15]1)=[O:12]

Participants

4

Reactant 2

HCID 6422Trifluoroacetic acidHCID 68468848HCID 68468848, compound

Product 1

HCID 86643220(R)-3-((S)-2-amino-phenylpropanoyloxy)-1-(2-phenoxyethyl)-1-azonia-bicyclo[2.2.2]octane trifluoroacetate trifluoroacetateYield 43%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a solution of (R)-3-((S)-2-tertbutoxycarbonylamino-phenylpropanoyloxy)-1-(2-phenoxyethyl)-1-azonia-bicyclo[2.2.2]octane bromide (I148) (0.53 mmol) in DCM (5 mL), is added trifluoroacetic acid (0.50 mL, 4.41 mmol) and the mixture stirred at RT overnight. The solvent is evaporated and the resulting crude is purified by preparative LC-MS in order to obtain the title compound as a brown gummy solid (112 mg, 43% overall yield, trifluoroacetate salt and trifluoroacetate anion, single diastereoisomer).

Workup

  1. customThe solvent is evaporated
  2. customthe resulting crude is purified by preparative LC-MS in order

Sources & evidence

ORD record
ord-ea056342568b4066ac1e127ad54d1010
Source dataset
uspto-grants-2013_06
Patent number
US08455646B2

Reaction notes

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