5-Iodo-7-(triisopropylsilyl)-7H-pyrrolo-[2,3-d]pyrimidine → {6-fluoro-5-[hydroxy-(7-triisopropylsilanyl-7H-pyrrolo[2,3-d]pyrimidin-5-yl)-methyl]-pyridin-2-yl}-(4-methoxy-benzyl)-carbamic acid tert-butyl ester

HRID 1403279Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1403279
I[C:2]1[C:10]2[CH:9]=[N:8][CH:7]=[N:6][C:5]=2[N:4]([Si:11]([CH:18]([CH3:20])[CH3:19])([CH:15]([CH3:17])[CH3:16])[CH:12]([CH3:14])[CH3:13])[CH:3]=1.C([Mg]Cl)(C)C.[C:26]([O:30][C:31](=[O:51])[N:32]([C:42]1[CH:47]=[CH:46][C:45]([CH:48]=[O:49])=[C:44]([F:50])[N:43]=1)[CH2:33][C:34]1[CH:39]=[CH:38][C:37]([O:40][CH3:41])=[CH:36][CH:35]=1)([CH3:29])([CH3:28])[CH3:27]>O1CCCC1>[C:26]([O:30][C:31](=[O:51])[N:32]([C:42]1[CH:47]=[CH:46][C:45]([CH:48]([OH:49])[C:2]2[C:10]3[CH:9]=[N:8][CH:7]=[N:6][C:5]=3[N:4]([Si:11]([CH:18]([CH3:20])[CH3:19])([CH:15]([CH3:17])[CH3:16])[CH:12]([CH3:14])[CH3:13])[CH:3]=2)=[C:44]([F:50])[N:43]=1)[CH2:33][C:34]1[CH:35]=[CH:36][C:37]([O:40][CH3:41])=[CH:38][CH:39]=1)([CH3:29])([CH3:27])[CH3:28]

Komponenten

5

Edukt 3

HCID 509865195-Iodo-7-(triisopropylsilyl)-7H-pyrrolo-[2,3-d]pyrimidineHCID 57963046HCID 57963046, VerbindungHCID 178418918HCID 178418918, Verbindung

Produkt 1

HCID 57963240{6-fluoro-5-[hydroxy-(7-triisopropylsilanyl-7H-pyrrolo[2,3-d]pyrimidin-5-yl)-methyl]-pyridin-2-yl}-(4-methoxy-benzyl)-carbamic acid tert-butyl esterAusbeute 85,3 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 8028TetrahydrofuranLösungsmittel2×

Reaktionsbedingungen

Temperatur
0 °C

Versuchsvorschrift

To 5-iodo-7-triisopropylsilanyl-7H-pyrrolo[2,3-d]pyrimidine (38, 30 g, 74.7 mmol) in 300 mL of tetrahydrofuran under an atmosphere of nitrogen at −20° C., isopropylmagnesium chloride (43.6 mL, 2 M in tetrahydrofuran, 87 mmol) was added and the reaction allowed to warm to 0° C. over 30 minutes. The reaction was cooled to −40° C. and (6-fluoro-5-formyl-pyridin-2-yl)-(4-methoxy-benzyl)-carbamic acid tert-butyl ester (66, 17.96 g, 49.8 mmol) in tetrahydrofuran was added. The reaction was allowed to warm to 0° C. over an hour, then quenched with brine and extracted with ethyl acetate. The organic layer was dried over sodium sulfate, filtered and the filtrate concentrated under vacuum. The resulting material was purified by silica gel column chromatography, eluting with 0-40% ethyl acetate in hexane. Appropriate fractions were combined and the solvents removed under vacuum to provide the desired compound (67, 27 g, 42.5 mmol, 85% yield).

Aufarbeitung

  1. temperatureThe reaction was cooled to −40° C.
  2. temperatureto warm to 0° C. over an hour
  3. customquenched with brine
  4. extractionextracted with ethyl acetate
  5. dry with materialThe organic layer was dried over sodium sulfate
  6. filtrationfiltered
  7. concentrationthe filtrate concentrated under vacuum
  8. customThe resulting material was purified by silica gel column chromatography
  9. washeluting with 0-40% ethyl acetate in hexane
  10. customthe solvents removed under vacuum

Quellen und Nachweise

ORD-Eintrag
ord-28b54b0691f646b7ae650aa92c729537
Quelldatensatz
uspto-grants-2014_12
Patentnummer
US08912204B2

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