2-(Tri-n-butylstannyl)oxazole → 2-hydroxy-N,N-dimethyl-2-{5-[3-oxazol-2-yl-1(2-trimethylsilanyl-ethoxymethyl)-1H-pyrrolo[2,3-b]pyridin-5-yl]-pyridin-3-yl}-acetamide

HRID 886635Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 886635
[OH:1][CH:2]([C:8]1[CH:9]=[N:10][CH:11]=[C:12]([C:14]2[CH:15]=[C:16]3[C:22](I)=[CH:21][N:20]([CH2:24][O:25][CH2:26][CH2:27][Si:28]([CH3:31])([CH3:30])[CH3:29])[C:17]3=[N:18][CH:19]=2)[CH:13]=1)[C:3]([N:5]([CH3:7])[CH3:6])=[O:4].C([Sn](CCCC)(CCCC)[C:37]1[O:38][CH:39]=[CH:40][N:41]=1)CCC>CC(N(C)C)=O.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1.[Cu]I>[OH:1][CH:2]([C:8]1[CH:9]=[N:10][CH:11]=[C:12]([C:14]2[CH:15]=[C:16]3[C:22]([C:37]4[O:38][CH:39]=[CH:40][N:41]=4)=[CH:21][N:20]([CH2:24][O:25][CH2:26][CH2:27][Si:28]([CH3:31])([CH3:30])[CH3:29])[C:17]3=[N:18][CH:19]=2)[CH:13]=1)[C:3]([N:5]([CH3:7])[CH3:6])=[O:4]

Komponenten

6

Edukt 2

HCID 154861832-(Tri-n-butylstannyl)oxazoleHCID 598248902-hydroxy-2-{5-[3-iodo-1(2-trimethylsilanyl-ethoxymethyl)-1H-pyrrolo[2,3-b]pyridin-5-yl]-pyridin-3-yl}-N,N-dimethyl-acetamide

Produkt 1

HCID 598250292-hydroxy-N,N-dimethyl-2-{5-[3-oxazol-2-yl-1(2-trimethylsilanyl-ethoxymethyl)-1H-pyrrolo[2,3-b]pyridin-5-yl]-pyridin-3-yl}-acetamideAusbeute 22,5 %

Reagenzien, Katalysatoren, Lösungsmittel 3

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)KatalysatorHCID 178418397HCID 178418397, VerbindungKatalysatorHCID 31374DimethylacetamideLösungsmittel

Reaktionsbedingungen

Temperatur
120 °C

Versuchsvorschrift

A mixture of 2-hydroxy-2-{5-[3-iodo-1(2-trimethylsilanyl-ethoxymethyl)-1H-pyrrolo[2,3-b]pyridin-5-yl]-pyridin-3-yl}-N,N-dimethyl-acetamide (50 mg, 0.09 mmol), 2-tri-n-butylstannyloxazole (28 ul, 0.14 mmol), tetrakis(triphenylphosphine)palladium(0) (5 mg, 0.004 mmol), CuI (2 mg, 0.009 mmol) in DMA (1 ml) was stirred at 120° C. in a microwave for 20 minutes. The mixture was allowed to cool down to room temperature and then extracted with ethyl acetate (2X). The combined organic layers were extracted with brine, dried with Na2SO4, decanted, and concentrated to dryness. Silica gel chromatography of the crude using a gradient of ethyl acetate and hexane afforded 2-hydroxy-N,N-dimethyl-2-{5-[3-oxazol-2-yl-1(2-trimethylsilanyl-ethoxymethyl)-1H-pyrrolo[2,3-b]pyridin-5-yl]-pyridin-3-yl}-acetamide (10 mg, 22% yield).

Aufarbeitung

  1. temperatureto cool down to room temperature
  2. extractionextracted with ethyl acetate (2X)
  3. extractionThe combined organic layers were extracted with brine
  4. dry with materialdried with Na2SO4
  5. customdecanted
  6. concentrationconcentrated to dryness

Quellen und Nachweise

ORD-Eintrag
ord-8478090c38864e35ac9c4c154a9e0ecd
Quelldatensatz
uspto-grants-2012_08
Patentnummer
US08242280B2

Notizen zur Reaktion

Wird geladen…