(S)-tert-butyl 1-(3-bromo-5-(1,3-dioxoisoindolin-2-yl)pyridin-2-yl)-2-(3,5-difluorophenyl)ethylcarbamate → tert-Butyl (S)-(1-(5-amino-3-bromopyridin-2-yl)-2-(3,5-difluorophenyl)ethyl)carbamate

HRID 2170382ノート

反応式

HRID 2170382 の反応式
[Br:1][C:2]1[C:3]([C@@H:19]([NH:29][C:30](=[O:36])[O:31][C:32]([CH3:35])([CH3:34])[CH3:33])[CH2:20][C:21]2[CH:26]=[C:25]([F:27])[CH:24]=[C:23]([F:28])[CH:22]=2)=[N:4][CH:5]=[C:6]([N:8]2C(=O)C3C(=CC=CC=3)C2=O)[CH:7]=1>C(O)C.O.NN>[NH2:8][C:6]1[CH:7]=[C:2]([Br:1])[C:3]([C@@H:19]([NH:29][C:30](=[O:36])[O:31][C:32]([CH3:33])([CH3:35])[CH3:34])[CH2:20][C:21]2[CH:26]=[C:25]([F:27])[CH:24]=[C:23]([F:28])[CH:22]=2)=[N:4][CH:5]=1

参加物

4

反応物 1

HCID 90281392(S)-tert-butyl 1-(3-bromo-5-(1,3-dioxoisoindolin-2-yl)pyridin-2-yl)-2-(3,5-difluorophenyl)ethylcarbamate

生成物 1

HCID 90290195tert-Butyl (S)-(1-(5-amino-3-bromopyridin-2-yl)-2-(3,5-difluorophenyl)ethyl)carbamate

試薬・触媒・溶媒 2

HCID 702Ethanol溶媒2 回HCID 24654Hydrazine hydrate (1:1)溶媒

実験手順

To a mixture of (S)-tert-butyl (1-(3-bromo-5-(1,3-dioxoisoindolin-2-yl)pyridin-2-yl)-2-(3,5-difluorophenyl)ethyl)carbamate (30E, 1.5 g, 2.7 mmol) in 27 ml of ethanol, 0.9 ml of hydrazine monohydrate was added and stirred at room temperature for 2 hours. To the reaction mixture, ethanol was added and filtrated, and the filtrate was concentrated. The residue was diluted with ethyl acetate, and washed with water and then with a saturated sodium chloride solution. The organic layer was dried over anhydrous magnesium sulfate, and then concentrated under reduced pressure. The residue was subjected to silica gel column chromatography to give the title product. MS (m/z) 427.83 [M+H]+.

後処理

  1. additionwas added
  2. filtrationfiltrated
  3. concentrationthe filtrate was concentrated
  4. additionThe residue was diluted with ethyl acetate
  5. washwashed with water
  6. dry with materialThe organic layer was dried over anhydrous magnesium sulfate
  7. concentrationconcentrated under reduced pressure

出典と根拠

ORDレコード
ord-55789e97ab8e44269a50700fb17bb58a
出典データセット
uspto-grants-2015_06
特許番号
US09050344B2

反応ノート

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