Methanol → (2S,3R)-3-Azido-pyrrolidine-2-carboxylic acid 3-chloro-2-fluoro-benzylamide trifluoroacetate

HRID 1527334Notes

Reaction equation

HRID 1527334 reaction equation
C(OC([N:8]1[CH2:12][CH2:11][C@@H:10]([N:13]=[N+:14]=[N-:15])[C@H:9]1[C:16](=[O:27])[NH:17][CH2:18][C:19]1[CH:24]=[CH:23][CH:22]=[C:21]([Cl:25])[C:20]=1[F:26])=O)(C)(C)C.[C:28]([OH:34])([C:30]([F:33])([F:32])[F:31])=[O:29].CO>C(Cl)Cl>[F:31][C:30]([F:33])([F:32])[C:28]([OH:34])=[O:29].[Cl:25][C:21]1[C:20]([F:26])=[C:19]([CH:24]=[CH:23][CH:22]=1)[CH2:18][NH:17][C:16]([C@@H:9]1[C@H:10]([N:13]=[N+:14]=[N-:15])[CH2:11][CH2:12][NH:8]1)=[O:27]

Participants

5

Reactant 3

HCID 887MethanolHCID 6422Trifluoroacetic acidHCID 86673821(2S,3R)-3-Azido-2-(3-chloro-2-fluoro-benzylcarbamoyl)-pyrrolidine-1-carboxylic acid tert-butyl ester

Product 1

HCID 86673822(2S,3R)-3-Azido-pyrrolidine-2-carboxylic acid 3-chloro-2-fluoro-benzylamide trifluoroacetate

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a solution of (2S,3R)-3-azido-2-(3-chloro-2-fluoro-benzylcarbamoyl)-pyrrolidine-1-carboxylic acid tert-butylester (87 mg, 0.22 mmol) in CH2Cl2 (6 mL) was added TFA at RT, and stirring was continued overnight at RT. Methanol was added to the reaction mixture and volatiles were removed under reduced pressure. The residue was taken up in MeOH and concentrated in vacuo to afford the crude title compound as a colorless wax. The product was used in the next reaction step without further purification. MS (LC/MS): 298 [M+H]+; tR (HPLC conditions b): 2.71 min.

Workup

  1. customwere removed under reduced pressure
  2. concentrationconcentrated in vacuo

Sources & evidence

ORD record
ord-769a403816e7477ca6dd7e7a0acbfa53
Source dataset
uspto-grants-2015_07
Patent number
US09085555B2

Reaction notes

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