(R)-tert-butyl 3-(6-(5-(6-isopropoxy-pyrazin-2-yl)-1-tosyl-1H-indol-3-yl)pyrazin-2-ylamino)piperidine-1-carboxylate → (R)-tert-butyl 3-(6-(5-(6-isopropoxypyrazin-2-yl)-1H-indol-3-yl)pyrazin-2-ylamino)piperidine-1-carboxylate

HRID 1529313Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1529313
[CH:1]([O:4][C:5]1[N:10]=[C:9]([C:11]2[CH:12]=[C:13]3[C:17](=[CH:18][CH:19]=2)[N:16](S(C2C=CC(C)=CC=2)(=O)=O)[CH:15]=[C:14]3[C:30]2[N:35]=[C:34]([NH:36][C@@H:37]3[CH2:42][CH2:41][CH2:40][N:39]([C:43]([O:45][C:46]([CH3:49])([CH3:48])[CH3:47])=[O:44])[CH2:38]3)[CH:33]=[N:32][CH:31]=2)[CH:8]=[N:7][CH:6]=1)([CH3:3])[CH3:2]>O1CCOCC1.[OH-].[Na+]>[CH:1]([O:4][C:5]1[N:10]=[C:9]([C:11]2[CH:12]=[C:13]3[C:17](=[CH:18][CH:19]=2)[NH:16][CH:15]=[C:14]3[C:30]2[N:35]=[C:34]([NH:36][C@@H:37]3[CH2:42][CH2:41][CH2:40][N:39]([C:43]([O:45][C:46]([CH3:48])([CH3:47])[CH3:49])=[O:44])[CH2:38]3)[CH:33]=[N:32][CH:31]=2)[CH:8]=[N:7][CH:6]=1)([CH3:3])[CH3:2]

Komponenten

4

Edukt 1

HCID 67959931(R)-tert-butyl 3-(6-(5-(6-isopropoxy-pyrazin-2-yl)-1-tosyl-1H-indol-3-yl)pyrazin-2-ylamino)piperidine-1-carboxylate

Produkt 1

HCID 67960038(R)-tert-butyl 3-(6-(5-(6-isopropoxypyrazin-2-yl)-1H-indol-3-yl)pyrazin-2-ylamino)piperidine-1-carboxylateAusbeute 93,1 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 14798Sodium HydroxideLösungsmittelHCID 312751,4-DioxaneLösungsmittel

Reaktionsbedingungen

Temperatur
100 °C

Versuchsvorschrift

To a solution of (R)-tert-butyl 3-(6-(5-(6-isopropoxy-pyrazin-2-yl)-1-tosyl-1H-indol-3-yl)pyrazin-2-ylamino)piperidine-1-carboxylate (0.250 g, 0.365 mmol) in 1-4-dioxane (3.6 mL), 1N NaOH (3.6 mL) was added and heated at 100° C. for 2 h. The reaction mixture was quenched with ice cold water and precipitate was formed. The precipitate was collected by filtration, washed with ice cold water and dried to give pure (R)-tert-butyl 3-(6-(5-(6-isopropoxypyrazin-2-yl)-1H-indol-3-yl)pyrazin-2-ylamino)piperidine-1-carboxylate (180 mg, 93%). MS (ESI, pos. ion) m/z: 530.0 (M+1). To a solution of (R)-tert-butyl 3-(6-(5-(6-isopropoxypyrazin-2-yl)-1H-indol-3-yl)pyrazin-2-ylamino)piperidine-1-carboxylate (180 mg, 1.25 mmol) in EtOAc (5.0 mL) was treated with HCl in EtOAc (5.0 mL) and stirred at RT for 3 h. The reaction mixture was quenched with water, neutralized with NaHCO3, extracted with EtOAc. The organic layer was separated, dried over Na2SO4 and evaporated to dryness. The crude solid was re-crystallized in acetone to obtain (R)-6-(5-(6-isopropoxypyrazin-2-yl)-1H-indol-3-yl)-N-(piperidin-3-yl)pyrazin-2-amine. MS (ESI, pos. ion) m/z: 430.0 (M+1).

Aufarbeitung

  1. customThe reaction mixture was quenched with ice cold water
  2. customprecipitate was formed
  3. filtrationThe precipitate was collected by filtration
  4. washwashed with ice cold water
  5. customdried

Quellen und Nachweise

ORD-Eintrag
ord-9bf2853bd0c94a36a5ebb466ebffbf82
Quelldatensatz
uspto-grants-2015_07
Patentnummer
US09090593B2

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