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 245855ノート

反応式

HRID 245855 の反応式
[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]

参加物

6

反応物 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

生成物 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]-amide収率 71%

試薬・触媒・溶媒 3

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)触媒HCID 178418397HCID 178418397、化合物触媒HCID 6228Dimethylformamide溶媒

反応条件

温度
90 °C

実験手順

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.

後処理

  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)

出典と根拠

ORDレコード
ord-cd6b39a3370f44cba09f85816328c846
出典データセット
uspto-grants-2014_02
特許番号
US08658646B2

反応ノート

読み込み中…