2-Bromo-5-(2-trimethylsilanyl-ethoxymethyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxylic acid [(R)-2-(3-cyano-azetidin-1-yl)-1-methyl-2-oxo-ethyl]amide → 2-(6-fluoro-3-hydroxymethyl-imidazo[1,5-a]pyridin-1-yl)-5-(2-trimethylsilanyl-ethoxymethyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxylic acid [(R)-2-(3-cyano-azetidin-1-yl)-1-methyl-2-oxo-ethyl]-amide

HRID 245855Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 245855
[C:1]([CH:3]1[CH2:6][N:5]([C:7](=[O:31])[C@H:8]([NH:10][C:11]([C:13]2[C:21]3[C:16](=[N:17][CH:18]=[C:19](Br)[N:20]=3)[N:15]([CH2:23][O:24][CH2:25][CH2:26][Si:27]([CH3:30])([CH3:29])[CH3:28])[CH:14]=2)=[O:12])[CH3:9])[CH2:4]1)#[N:2].[F:32][C:33]1[CH:34]=[CH:35][C:36]2[N:37]([C:39]([CH2:55][OH:56])=[N:40][C:41]=2[Sn](CCCC)(CCCC)CCCC)[CH:38]=1>CN(C=O)C.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>[C:1]([CH:3]1[CH2:6][N:5]([C:7](=[O:31])[C@H:8]([NH:10][C:11]([C:13]2[C:21]3[C:16](=[N:17][CH:18]=[C:19]([C:41]4[N:40]=[C:39]([CH2:55][OH:56])[N:37]5[CH:38]=[C:33]([F:32])[CH:34]=[CH:35][C:36]=45)[N:20]=3)[N:15]([CH2:23][O:24][CH2:25][CH2:26][Si:27]([CH3:30])([CH3:29])[CH3:28])[CH:14]=2)=[O:12])[CH3:9])[CH2:4]1)#[N:2]

Komponenten

6

Edukt 2

HCID 584386122-Bromo-5-(2-trimethylsilanyl-ethoxymethyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxylic acid [(R)-2-(3-cyano-azetidin-1-yl)-1-methyl-2-oxo-ethyl]amideHCID 71280339(6-Fluoro-1-tributylstannanyl-imidazo[1,5-a]pyridin-3-yl)-methanol

Produkt 1

HCID 712888572-(6-fluoro-3-hydroxymethyl-imidazo[1,5-a]pyridin-1-yl)-5-(2-trimethylsilanyl-ethoxymethyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxylic acid [(R)-2-(3-cyano-azetidin-1-yl)-1-methyl-2-oxo-ethyl]-amideAusbeute 71 %

Reagenzien, Katalysatoren, Lösungsmittel 3

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)KatalysatorHCID 178418397HCID 178418397, VerbindungKatalysatorHCID 6228DimethylformamideLösungsmittel

Reaktionsbedingungen

Temperatur
90 °C

Versuchsvorschrift

In a round-bottomed flask, 2-bromo-5-(2-trimethylsilanyl-ethoxymethyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxylic acid [(R)-2-(3-cyano-azetidin-1-yl)-1-methyl-2-oxo-ethyl]-amide (100 mg, 0.20 mmol) and (6-Fluoro-1-tributylstannanyl-imidazo[1,5-a]pyridin-3-yl)-methanol (crude from Step 5) were dissolved in DMF (2 ml The flask was evacuated and backfilled with argon then tetrakis(triphenylphosphine)palladium (0) (12 mg, 0.010 mmol) and copper (I) iodide (8 mg, 0.042 mmol) were added. The reaction mixture was stirred at 90° C. in an oil bath for 3 h then cooled to room temperature, quenched with water and extracted with dichloromethane (2×). The combined organic layers were washed twice with water and once with brine then dried over sodium sulfate, filtered and concentrated. The residue was absorbed on silica gel and chromatographed with MeOH/CH2Cl2/0.5% NH4OH (gradient 0-3% MeOH) to afford 83 mg (71%) of 2-(6-fluoro-3-hydroxymethyl-imidazo[1,5-a]pyridin-1-yl)-5-(2-trimethylsilanylethoxymethyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxylic acid [(R)-2-(3-cyano-azetidin-1-yl)-1-methyl-2-oxo-ethyl]-amide as a light brown solid.

Aufarbeitung

  1. customwas evacuated
  2. temperaturethen cooled to room temperature
  3. customquenched with water
  4. extractionextracted with dichloromethane (2×)
  5. washThe combined organic layers were washed twice with water and once with brine
  6. dry with materialthen dried over sodium sulfate
  7. filtrationfiltered
  8. concentrationconcentrated
  9. customThe residue was absorbed on silica gel
  10. customchromatographed with MeOH/CH2Cl2/0.5% NH4OH (gradient 0-3% MeOH)

Quellen und Nachweise

ORD-Eintrag
ord-cd6b39a3370f44cba09f85816328c846
Quelldatensatz
uspto-grants-2014_02
Patentnummer
US08658646B2

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