Hydrochloric Acid → 2-(2-((Pyridin-3-yloxy)methyl)piperazin-1-yl)-6-(trifluoromethyl)thiazolo[4,5-b]pyridine hydrochloride

HRID 549748Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 549748
[ClH:1].O1CCOCC1.[N:8]1[CH:13]=[CH:12][CH:11]=[C:10]([O:14][CH2:15][CH:16]2[N:21]([C:22]3[S:23][C:24]4[C:25]([N:34]=3)=[N:26][CH:27]=[C:28]([C:30]([F:33])([F:32])[F:31])[CH:29]=4)[CH2:20][CH2:19][N:18](C(OC(C)(C)C)=O)[CH2:17]2)[CH:9]=1>CO>[ClH:1].[N:8]1[CH:13]=[CH:12][CH:11]=[C:10]([O:14][CH2:15][CH:16]2[CH2:17][NH:18][CH2:19][CH2:20][N:21]2[C:22]2[S:23][C:24]3[C:25]([N:34]=2)=[N:26][CH:27]=[C:28]([C:30]([F:33])([F:32])[F:31])[CH:29]=3)[CH:9]=1

Komponenten

5

Edukt 3

HCID 313Hydrochloric Acid2×HCID 312751,4-Dioxane2×HCID 59671604Tert-butyl 3-((pyridin-3-yloxy)methyl)-4-(6-(trifluoromethyl)thiazolo[4,5-b]pyridin-2-yl)piperazine-1-carboxylate

Produkt 1

HCID 667969732-(2-((Pyridin-3-yloxy)methyl)piperazin-1-yl)-6-(trifluoromethyl)thiazolo[4,5-b]pyridine hydrochlorideAusbeute 52 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 887MethanolLösungsmittel

Versuchsvorschrift

4 M HCl in 1,4-dioxane (6 mL, 24 mmol) was added to a solution of tert-butyl 3-((pyridin-3-yloxy)methyl)-4-(6-(trifluoromethyl)thiazolo[4,5-b]pyridin-2-yl)piperazine-1-carboxylate (134 mg, 0.271 mmol) in MeOH (1 mL). After stirring overnight, the reaction mixture was concentrated under reduced pressure and purified by HPLC (5 to 50% MeCN/0.1% TFA in H2O/0.1% TFA gradient). The fractions containing the desired product were combined and brought to pH 12 with 1 N NaOH and were extracted with EtOAc (3×). The combined organics were dried over Na2SO4, filtered, and concentrated under reduced pressure. The material was dissolved in MeOH (1 mL) and 4 M HCl in 1,4-dioxane (1 equiv. HCl, 0.036 mL) was added. The mixture was concentrated under reduced pressure to give 60.5 mg (52%) of the desired product as the hydrochloride salt. LC-MS: RT=4.53 min, [M+H]+=396.6.

Aufarbeitung

  1. concentrationthe reaction mixture was concentrated under reduced pressure
  2. custompurified by HPLC (5 to 50% MeCN/0.1% TFA in H2O/0.1% TFA gradient)
  3. additionThe fractions containing the desired product
  4. extractionwere extracted with EtOAc (3×)
  5. dry with materialThe combined organics were dried over Na2SO4
  6. filtrationfiltered
  7. concentrationconcentrated under reduced pressure
  8. dissolutionThe material was dissolved in MeOH (1 mL)
  9. concentrationThe mixture was concentrated under reduced pressure

Quellen und Nachweise

ORD-Eintrag
ord-7a3a900bf3ac47ae8590406a94247f4d
Quelldatensatz
uspto-grants-2011_05
Patentnummer
US07943622B2

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