Trifluoroacetic acid → (R)-5-(2-chloro-6-fluorophenyl)-3-(6-(piperidin-3-yloxy)pyrazin-2-yl)-1H-indole bis(2,2,2-trifluoroacetate)

HRID 1529320Notes

Reaction equation

HRID 1529320 reaction equation
[Cl:1][C:2]1[CH:7]=[CH:6][CH:5]=[C:4]([F:8])[C:3]=1[C:9]1[CH:10]=[C:11]2[C:15](=[CH:16][CH:17]=1)[NH:14][CH:13]=[C:12]2[C:18]1[N:23]=[C:22]([O:24][C@@H:25]2[CH2:30][CH2:29][CH2:28][N:27](C(OC(C)(C)C)=O)[CH2:26]2)[CH:21]=[N:20][CH:19]=1.[C:38]([OH:44])([C:40]([F:43])([F:42])[F:41])=[O:39]>C(Cl)Cl>[F:41][C:40]([F:43])([F:42])[C:38]([OH:44])=[O:39].[F:41][C:40]([F:43])([F:42])[C:38]([OH:44])=[O:39].[Cl:1][C:2]1[CH:7]=[CH:6][CH:5]=[C:4]([F:8])[C:3]=1[C:9]1[CH:10]=[C:11]2[C:15](=[CH:16][CH:17]=1)[NH:14][CH:13]=[C:12]2[C:18]1[CH:19]=[N:20][CH:21]=[C:22]([O:24][C@@H:25]2[CH2:30][CH2:29][CH2:28][NH:27][CH2:26]2)[N:23]=1

Participants

4

Reactant 2

HCID 6422Trifluoroacetic acidHCID 67960707(R)-tert-butyl 3-(6-(5-(2-chloro-6-fluorophenyl)-1H-indol-3-yl)pyrazin-2-yloxy)piperidine-1-carboxylate

Product 1

HCID 86709771(R)-5-(2-chloro-6-fluorophenyl)-3-(6-(piperidin-3-yloxy)pyrazin-2-yl)-1H-indole bis(2,2,2-trifluoroacetate)

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a solution of (R)-tert-butyl 3-(6-(5-(2-chloro-6-fluorophenyl)-1H-indol-3-yl)pyrazin-2-yloxy)piperidine-1-carboxylate (0.077 g, 0.147 mmol) in 1.5 mL DCM was added TFA (0.170 mL, 2.208 mmol). After 30 min, the reaction was concentrated in vacuo, taken up in DMSO, and purified by RPHPLC, 10-100% ACN/H2O with 0.1% TFA; product-containing fractions were combined and concentrated in vacuo to give (R)-5-(2-chloro-6-fluorophenyl)-3-(6-(piperidin-3-yloxy)pyrazin-2-yl)-1H-indole bis(2,2,2-trifluoroacetate) as an orange solid. MS (ESI, pos. ion) m/z: 423 (M+1).

Workup

  1. concentrationthe reaction was concentrated in vacuo
  2. custompurified by RPHPLC, 10-100% ACN/H2O with 0.1% TFA
  3. concentrationconcentrated in vacuo

Sources & evidence

ORD record
ord-cd6459ea45a54c91862ce327ef293f17
Source dataset
uspto-grants-2015_07
Patent number
US09090593B2

Reaction notes

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