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Triethylamine → Trifluoroacetic acid

HRID 2209080
Notes
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Reaction equation

HRID 2209080 reaction equation
[CH:1]1([N:4]2[C:8]3[C:9]([O:25][C@@H:26]([C@H:28]4[CH2:32][NH:31][C:30](=[O:33])[CH2:29]4)[CH3:27])=[N:10][C:11]([C:13]4[CH:18]=[CH:17][C:16]([N:19]5[CH2:24][CH2:23][NH:22][CH2:21][CH2:20]5)=[CH:15][CH:14]=4)=[CH:12][C:7]=3[N:6]=[CH:5]2)[CH2:3][CH2:2]1.C(N(CC)CC)C.FC(F)(F)S([O:46][CH2:47][C:48]([F:51])([F:50])[F:49])(=O)=O>C(Cl)Cl>[CH:1]1([N:4]2[C:8]3[C:9]([O:25][C@@H:26]([C@H:28]4[CH2:32][NH:31][C:30](=[O:33])[CH2:29]4)[CH3:27])=[N:10][C:11]([C:13]4[CH:18]=[CH:17][C:16]([N:19]5[CH2:24][CH2:23][N:22]([CH2:47][C:48]([F:51])([F:50])[F:49])[CH2:21][CH2:20]5)=[CH:15][CH:14]=4)=[CH:12][C:7]=3[N:6]=[CH:5]2)[CH2:2][CH2:3]1.[F:49][C:48]([F:51])([F:50])[C:47]([OH:25])=[O:46]
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

6

Reactant 3

HCID 8471TriethylamineHCID 803662,2,2-Trifluoroethyl trifluoromethanesulfonateHCID 117844129HCID 117844129, compound

Product 2

HCID 6422Trifluoroacetic acidHCID 117843741(R)-4-((R)-1-((3-cyclopropyl-6-(4-(4-(2,2,2-trifluoroethyl)piperazin-1-yl)phenyl)-3H-imidazo[4,5-c]pyridin-4-yl)oxy)ethyl)pyrrolidin-2-one

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

In an appropriate sized vial the trifluoroacetic acid salt (R)-4-((R)-1-((3-cyclopropyl-6-(4-(piperazin-1-yl)phenyl)-3H-imidazo[4,5-c]pyridin-4-yl)oxy)ethyl)pyrrolidin-2-one 3.42 (25 mg, 0.046 mmol) and triethylamine (27 mg, 0.27 mmol) were dissolved in DCM (1.5 mL). To this mixture 2,2,2-trifluoroethyl trifluoromethanesulfonate (12 mg, 0.053 mmol) was added and the mixture was stirred at room temperature for 24 h. The mixture was concentrated under reduced pressure and the residue was purified via prep HPLC (2-65% acetonitrile in water, 0.1% trifluoroacteic acid) to provide (R)-4-((R)-1-((3-cyclopropyl-6-(4-(4-(2,2,2-trifluoroethyl)piperazin-1-yl)phenyl)-3H-imidazo[4,5-c]pyridin-4-yl)oxy)ethyl)pyrrolidin-2-one 3.47 as its trifluoroacetic acid salt.

Workup

  1. concentrationThe mixture was concentrated under reduced pressure
  2. customthe residue was purified via prep HPLC (2-65% acetonitrile in water, 0.1% trifluoroacteic acid)

Sources & evidence

ORD record
ord-79a60cb494514b24ae9059752cff2fd1
Source dataset
uspto-grants-2016_06
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US09376441B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes