Trifluoroacetic acid → (1R,3S,5R)-2-Aza-bicyclo[3.1.0]hexane-3-carboxylic acid benzyl ester trifluoroacetate

HRID 1527438Notes

Reaction equation

HRID 1527438 reaction equation
C(OC([N:8]1[C@H:13]([C:14]([O:16][CH2:17][C:18]2[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=2)=[O:15])[CH2:12][C@@H:11]2[C@H:9]1[CH2:10]2)=O)(C)(C)C.[C:24]([OH:30])([C:26]([F:29])([F:28])[F:27])=[O:25]>C(Cl)Cl>[F:27][C:26]([F:29])([F:28])[C:24]([OH:30])=[O:25].[CH2:17]([O:16][C:14]([C@@H:13]1[CH2:12][C@@H:11]2[C@@H:9]([CH2:10]2)[NH:8]1)=[O:15])[C:18]1[CH:19]=[CH:20][CH:21]=[CH:22][CH:23]=1

Participants

4

Reactant 2

HCID 6422Trifluoroacetic acidHCID 68283955(1R,3S,5R)-2-Aza-bicyclo[3.1.0]hexane-2,3-dicarboxylic acid 3-benzyl ester 2-tert-butyl ester

Product 1

HCID 68284347(1R,3S,5R)-2-Aza-bicyclo[3.1.0]hexane-3-carboxylic acid benzyl ester trifluoroacetate

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To (1R,3S,5R)-2-aza-bicyclo[3.1.0]hexane-2,3-dicarboxylic acid 3-benzyl ester 2-tert-butyl ester (3.27 g, 9.79 mmol) in CH2Cl2 (50 mL) was added was added TFA (7.54 mL, 98 mmol). The reaction mixture was stirred overnight at RT and subsequently concentrated under reduced pressure to give the desired material as a yellow oil. MS (UPLC): 218.1 [M+H]+; tR (HPLC conditions f): 1.24 min.

Workup

  1. concentrationsubsequently concentrated under reduced pressure

Sources & evidence

ORD record
ord-de6cacf099cc4b74b519f620aad50a81
Source dataset
uspto-grants-2015_07
Patent number
US09085555B2

Reaction notes

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