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Sodium bis(trimethylsilyl)amide → Tert-butyl 4-((1r)-1-(6-(5-fluoro-6-methoxypyridin-3-ylamino)-5-(2-methyl-9-(tetrahydro-2h-pyran-2-yl)-9h-purin-6-yl)pyridin-3-yl)ethyl)piperazine-1-carboxylate

HRID 1812268
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Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 1812268
F[C:2]1[N:7]=[CH:6][C:5]([C@H:8]([N:10]2[CH2:15][CH2:14][N:13]([C:16]([O:18][C:19]([CH3:22])([CH3:21])[CH3:20])=[O:17])[CH2:12][CH2:11]2)[CH3:9])=[CH:4][C:3]=1[C:23]1[N:31]=[C:30]([CH3:32])[N:29]=[C:28]2[C:24]=1[N:25]=[CH:26][N:27]2[CH:33]1[CH2:38][CH2:37][CH2:36][CH2:35][O:34]1.[F:39][C:40]1[CH:41]=[C:42]([NH2:48])[CH:43]=[N:44][C:45]=1[O:46][CH3:47].C[Si]([N-][Si](C)(C)C)(C)C.[Na+]>C1COCC1>[F:39][C:40]1[CH:41]=[C:42]([NH:48][C:2]2[N:7]=[CH:6][C:5]([C@H:8]([N:10]3[CH2:11][CH2:12][N:13]([C:16]([O:18][C:19]([CH3:20])([CH3:22])[CH3:21])=[O:17])[CH2:14][CH2:15]3)[CH3:9])=[CH:4][C:3]=2[C:23]2[N:31]=[C:30]([CH3:32])[N:29]=[C:28]3[C:24]=2[N:25]=[CH:26][N:27]3[CH:33]2[CH2:38][CH2:37][CH2:36][CH2:35][O:34]2)[CH:43]=[N:44][C:45]=1[O:46][CH3:47]
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Komponenten

5

Edukt 3

HCID 2724254Sodium bis(trimethylsilyl)amideHCID 454803515-Fluoro-6-methoxypyridin-3-amineHCID 68518749tert-butyl 4-((1R)-1-(6-fluoro-5-(2-methyl-9-(tetrahydro-2H-pyran-2-yl)-9H-purin-6-yl)pyridin-3-yl)ethyl)piperazine-1-carboxylate

Produkt 1

HCID 68515999Tert-butyl 4-((1r)-1-(6-(5-fluoro-6-methoxypyridin-3-ylamino)-5-(2-methyl-9-(tetrahydro-2h-pyran-2-yl)-9h-purin-6-yl)pyridin-3-yl)ethyl)piperazine-1-carboxylate
Ausbeute 55,4 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 8028TetrahydrofuranLösungsmittel2×

Reaktionsbedingungen

Temperatur
-20 °C

Versuchsvorschrift

A mixture of tert-butyl 4-((1R)-1-(6-fluoro-5-(2-methyl-9-(tetrahydro-2H-pyran-2-yl)-9H-purin-6-yl)pyridin-3-yl)ethyl)piperazine-1-carboxylate (0.673 g, 1.280 mmol) in THF (15 mL) under inert atmosphere was treated with a solution of 5-fluoro-6-methoxypyridin-3-amine (0.364 g, 2.56 mmol) in THF (10 mL) via syringe. The mixture was chilled to −20° C. in a diluted dry ice/acetone bath, then sodium bis(trimethylsilyl)amide (1.0 M in THF, Aldrich; 3.84 mL, 3.84 mmol) was added slowly via syringe into the reaction mixture. After the addition, the ice bath was removed and the mixture was allowed to stir under inert atmosphere for 1 h. The mixture was diluted with chloroform (20 mL) and water (10 mL). The organic layer was extracted with chloroform (3×10 mL). The combined organic extracts were dried over sodium sulfate, filtered and concentrated in vacuo. The crude material was adsorbed onto a plug of silica gel and purified by chromatography through a silica-gel column (80 g) eluting with 100% ethyl acetate to give tert-butyl 4-((1R)-1-(6-(5-fluoro-6-methoxypyridin-3-ylamino)-5-(2-methyl-9-(tetrahydro-2H-pyran-2-yl)-9H-purin-6-yl)pyridin-3-yl)ethyl)piperazine-1-carboxylate (0.459 g, 0.709 mmol, 55.3% yield) as a tan solid. 1H NMR (400 MHz, CDCl3) δ 12.61 (s, 1H) 9.65 (t, J=1.96 Hz, 1H) 8.31 (dd, J=12.52, 2.35 Hz, 1H) 8.18-8.23 (m, 2H) 8.03 (d, J=2.35 Hz, 1H) 5.80 (dd, J=10.47, 2.05 Hz, 1H) 3.96 (s, 3H) 3.76 (s, 1H) 3.55 (d, J=6.85 Hz, 1H) 3.36 (s, 4H) 2.85 (s, 3H) 2.40 (d, J=3.33 Hz, 4H) 2.07 (s, 1H) 2.02 (s, 1H) 1.97 (s, 1H) 1.54-1.81 (m, 2H) 1.41 (d, J=6.65 Hz, 3H) 1.36 (s, 9H) 1.19 (s, 1H) 0.90 (d, J=6.65 Hz, 1H). m/z (ESI, +ve ion) 648.2 (M+H)+.

Aufarbeitung

  1. additionAfter the addition
  2. customthe ice bath was removed
  3. additionThe mixture was diluted with chloroform (20 mL) and water (10 mL)
  4. extractionThe organic layer was extracted with chloroform (3×10 mL)
  5. dry with materialThe combined organic extracts were dried over sodium sulfate
  6. filtrationfiltered
  7. concentrationconcentrated in vacuo
  8. custompurified by chromatography through a silica-gel column (80 g)
  9. washeluting with 100% ethyl acetate

Quellen und Nachweise

ORD-Eintrag
ord-8e8a4c10cd314deb8187b57cd0de05fb
Quelldatensatz
uspto-grants-2013_01
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US08362241B2

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