Water → 4-{4-Chloro-7-(1-ethylpropyl)-2-[(1,3,5-trimethyl-1H-pyrazol-4-yl)amino]-1H-benzimidazol-1-yl}butan-1-ol

HRID 1628410ノート

反応式

HRID 1628410 の反応式
[Cl:1][C:2]1[C:10]2[N:9]=[C:8]([NH:11][C:12]3[C:13]([CH3:19])=[N:14][N:15]([CH3:18])[C:16]=3[CH3:17])[N:7]([CH2:20][CH2:21][CH2:22][C:23](OCC)=[O:24])[C:6]=2[C:5]([CH:28]([CH2:31][CH3:32])[CH2:29][CH3:30])=[CH:4][CH:3]=1.[BH4-].[Li+].O>O1CCCC1>[Cl:1][C:2]1[C:10]2[N:9]=[C:8]([NH:11][C:12]3[C:13]([CH3:19])=[N:14][N:15]([CH3:18])[C:16]=3[CH3:17])[N:7]([CH2:20][CH2:21][CH2:22][CH2:23][OH:24])[C:6]=2[C:5]([CH:28]([CH2:31][CH3:32])[CH2:29][CH3:30])=[CH:4][CH:3]=1

参加物

5

反応物 3

HCID 962WaterHCID 4148881Lithium borohydrideHCID 68773743Ethyl 4-{4-chloro-7-(1-ethylpropyl)-2-[(1,3,5-trimethyl-1H-pyrazol-4-yl)amino]-1H-benzimidazol-1-yl}butanoate

生成物 1

HCID 687727914-{4-Chloro-7-(1-ethylpropyl)-2-[(1,3,5-trimethyl-1H-pyrazol-4-yl)amino]-1H-benzimidazol-1-yl}butan-1-ol収率 34%

試薬・触媒・溶媒 1

HCID 8028Tetrahydrofuran溶媒

実験手順

To a solution of ethyl 4-{4-chloro-7-(1-ethylpropyl)-2-[(1,3,5-trimethyl-1H-pyrazol-4-yl)amino]-1H-benzimidazol-1-yl}butanoate (240 mg, 0.52 mmol) in tetrahydrofuran (3 mL) was added lithium borohydride (34 mg, 1.57 mmol) portionwise at 0° C. The mixture was warmed to room temperature and stirred for 16 hr. Water was added and the mixture was extracted with ethyl acetate. Organic layer was washed with brine, dried over anhydrous sodium sulfate and concentrated in vacuo. The residue was purified by flash chromatography on silica gel eluting with a 0-10% methanol/ethyl acetate gradient mixture. The filtrate was concentrated in vacuo to give the title compound (74 mg, 0.17 mmol, 34%) as a colorless amorphous.

後処理

  1. extractionthe mixture was extracted with ethyl acetate
  2. washOrganic layer was washed with brine
  3. dry with materialdried over anhydrous sodium sulfate
  4. concentrationconcentrated in vacuo
  5. customThe residue was purified by flash chromatography on silica gel eluting with a 0-10% methanol/ethyl acetate gradient mixture
  6. concentrationThe filtrate was concentrated in vacuo

出典と根拠

ORDレコード
ord-c2fb99fc2e2c41dfb5bde345ec1d0d50
出典データセット
uspto-grants-2014_07
特許番号
US08785460B2

反応ノート

読み込み中…