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Dimethylformamide → N-[5-Bromo-2-({(2S)-3-[4-(5-fluoro-2-oxo-2,3-dihydro-1H-benzimidazol-1-yl)-1-piperidinyl]-2-hydroxypropyl}oxy)4-methoxyphenyl]acetamide

HRID 132595
ノート
印刷プレビュー

反応式

HRID 132595 の反応式
[F:1][C:2]1[CH:34]=[CH:33][C:5]2[N:6]([CH:10]3[CH2:15][CH2:14][N:13]([CH2:16][C@H:17]([OH:32])[CH2:18][O:19][C:20]4[CH:25]=[C:24]([O:26][CH3:27])[CH:23]=[CH:22][C:21]=4[NH:28][C:29](=[O:31])[CH3:30])[CH2:12][CH2:11]3)[C:7](=[O:9])[NH:8][C:4]=2[CH:3]=1.CN(C=O)C.B(Br)(Br)[Br:41]>C(Cl)Cl>[Br:41][C:23]1[C:24]([O:26][CH3:27])=[CH:25][C:20]([O:19][CH2:18][C@@H:17]([OH:32])[CH2:16][N:13]2[CH2:12][CH2:11][CH:10]([N:6]3[C:5]4[CH:33]=[CH:34][C:2]([F:1])=[CH:3][C:4]=4[NH:8][C:7]3=[O:9])[CH2:15][CH2:14]2)=[C:21]([NH:28][C:29](=[O:31])[CH3:30])[CH:22]=1
参加物実験手順後処理出典と根拠反応ノート

参加物

5

反応物 3

HCID 6228DimethylformamideHCID 25134Boron tribromideHCID 69199245N-[2-({(2S)-3-[4-(5-fluoro-2-oxo-2,3-dihydro-1H-benzimidazol-1-yl)-1-piperidinyl]-2-hydroxypropyl}oxy)-4-methoxyphenyl]acetamide

生成物 1

HCID 69196349N-[5-Bromo-2-({(2S)-3-[4-(5-fluoro-2-oxo-2,3-dihydro-1H-benzimidazol-1-yl)-1-piperidinyl]-2-hydroxypropyl}oxy)4-methoxyphenyl]acetamide収率 45%

試薬・触媒・溶媒 1

HCID 6344
Dichloromethane
溶媒
2 回

実験手順

To a stirred suspension of N-[2-({(2S)-3-[4-(5-fluoro-2-oxo-2,3-dihydro-1H-benzimidazol-1-yl)-1-piperidinyl]-2-hydroxypropyl}oxy)-4-methoxyphenyl]acetamide (Example 32 iii)) (0.17 g, 0.36 mmol) in CH2Cl2 (5 ml) with some drops of DMF a solution of boron tribromide (BBr3) in dichloromethane (CH2Cl2) (1M, 1.08 mmol, 1.08 ml) was added dropwise under nitrogen. The stirring was continued overnight art room temperature. Then the reaction mixture was quenched with methanol, diluted with water and extracted with dichloromethane (CH2Cl2) (2×10 ml) and ethyl acetate (2×10 ml). The combined organic extracts were dried with sodium sulphate and concentrated in vacuo. The residue was purified by flash chromatography of silica gel (CH2Cl2/MeOH, 9:1) to give a colourless solid (89 mg, 0.16 mmol, 45%).

後処理

  1. additionwas added dropwise under nitrogen
  2. customart room temperature
  3. customThen the reaction mixture was quenched with methanol
  4. additiondiluted with water
  5. extractionextracted with dichloromethane (CH2Cl2) (2×10 ml) and ethyl acetate (2×10 ml)
  6. dry with materialThe combined organic extracts were dried with sodium sulphate
  7. concentrationconcentrated in vacuo
  8. customThe residue was purified by flash chromatography of silica gel (CH2Cl2/MeOH, 9:1)

出典と根拠

ORDレコード
ord-33f21adb4f9f4262b77f3582aafceb01
出典データセット
uspto-grants-2008_06
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US07388020B2

反応ノート

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