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Trifluoroacetic acid → N-(5-(4-acetylpiperazin-1-yl)pyridin-2-yl)-2-(6-chloro-5-fluoropyridin-3-yl)acetamide

HRID 1036253
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Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 1036253
[Cl:1][C:2]1[N:7]=[CH:6][C:5]([CH2:8][C:9]([O:11]C(C)(C)C)=O)=[CH:4][C:3]=1[F:16].C(O)(C(F)(F)F)=O.[NH2:24][C:25]1[N:30]=[CH:29][C:28]([N:31]2[CH2:36][CH2:35][N:34]([C:37](=[O:39])[CH3:38])[CH2:33][CH2:32]2)=[CH:27][CH:26]=1.CCN(C(C)C)C(C)C.F[P-](F)(F)(F)(F)F.N1(OC(N(C)C)=[N+](C)C)C2N=CC=CC=2N=N1>C(Cl)Cl>[C:37]([N:34]1[CH2:33][CH2:32][N:31]([C:28]2[CH:27]=[CH:26][C:25]([NH:24][C:9](=[O:11])[CH2:8][C:5]3[CH:6]=[N:7][C:2]([Cl:1])=[C:3]([F:16])[CH:4]=3)=[N:30][CH:29]=2)[CH2:36][CH2:35]1)(=[O:39])[CH3:38]
KomponentenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

7

Edukt 5

HCID 6422Trifluoroacetic acidHCID 81531DiisopropylethylamineHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 284116891-(4-(6-Aminopyridin-3-YL)piperazin-1-YL)ethan-1-oneHCID 58365072Tert-butyl 2-(6-chloro-5-fluoropyridin-3-yl)acetate

Produkt 1

HCID 58447659N-(5-(4-acetylpiperazin-1-yl)pyridin-2-yl)-2-(6-chloro-5-fluoropyridin-3-yl)acetamide

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6344DichloromethaneLösungsmittel

Versuchsvorschrift

A mixture of tert-butyl 2-(6-chloro-5-fluoropyridin-3-yl)acetate 190-3 (123 mg, 0.50 mmol) and TFA (0.5 mL) in DCM (3 mL) was stirred at room temperature for 2 hours. The solvents were evaporated to dryness under high vacuum. The crude product, 2-(6-chloro-5-fluoropyridin-3-yl)acetic acid 190-4, was dissolved in DMF (3 mL). 1-(4-(6-aminopyridin-3-yl)piperazin-1-yl)ethanone (110 mg, 0.50 mmol) and DIEA (500 uL, 2.87 mmol) were added to the solution before O-(7-azabenzotriazol-1-yl)-N,N,N′,N′-tetramethyluroniumhexafluorophosphate (285 mg, 0.75 mmol). The mixture was stirred at room temperature overnight. The solvent was removed by rotary evaporation. The residue was purified by silica gel flash chromatography and eluted with 5% MeOH in CH2Cl2 to give N-(5-(4-acetylpiperazin-1-yl)pyridin-2-yl)-2-(6-chloro-5-fluoropyridin-3-yl)acetamide 190-5. MS m/z 392.2 (M+1).

Aufarbeitung

  1. customThe solvents were evaporated to dryness under high vacuum
  2. dissolutionThe crude product, 2-(6-chloro-5-fluoropyridin-3-yl)acetic acid 190-4, was dissolved in DMF (3 mL)
  3. stirringThe mixture was stirred at room temperature overnight
  4. customThe solvent was removed by rotary evaporation
  5. customThe residue was purified by silica gel flash chromatography
  6. washeluted with 5% MeOH in CH2Cl2

Quellen und Nachweise

ORD-Eintrag
ord-3bfed90937bc4c3195d11727b60f68ff
Quelldatensatz
uspto-grants-2013_10
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US08546396B2

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