Barium hydroxide, monohydrate → (2R,3S)-3-amino-4-(3,5-difluorophenyl)-1-(5-methyl-2-(pent-4-enyl)benzylamino)butan-2-ol

HRID 501723

反応式

HRID 501723 の反応式
FC(F)(F)C(O)=O.[F:8][C:9]1[CH:10]=[C:11]([CH2:16][C@H:17]([NH:35]C(=O)OCC2C=CC=CC=2)[C@H:18]([OH:34])[CH2:19][NH:20][CH2:21][C:22]2[CH:27]=[C:26]([CH3:28])[CH:25]=[CH:24][C:23]=2[CH2:29][CH2:30][CH2:31][CH:32]=[CH2:33])[CH:12]=[C:13]([F:15])[CH:14]=1.O.[OH-].[Ba+2].[OH-]>COCCOC.O>[NH2:35][C@@H:17]([CH2:16][C:11]1[CH:12]=[C:13]([F:15])[CH:14]=[C:9]([F:8])[CH:10]=1)[C@H:18]([OH:34])[CH2:19][NH:20][CH2:21][C:22]1[CH:27]=[C:26]([CH3:28])[CH:25]=[CH:24][C:23]=1[CH2:29][CH2:30][CH2:31][CH:32]=[CH2:33]

参加物

5

反応条件

温度
110 °C

実験手順

Step AL (2): To a solution of benzyl (2S,3R)-1-(3,5-difluorophenyl)-3-hydroxy-4-(5-methyl-2-(pent-4-enyl)benzylamino)butan-2-ylcarbamate trifluoroacetate salt (65 mg, 0.102 mmol) in DME (7.0 mL) and water (4.5 mL) was added barium hydroxide monohydrate (625 mg, 3.3 mmol). The reaction mixture was stirred at 110° C. in a high pressure vial for 18 h. The reaction mixture was filtered through a pad of celite and the filtrate was concentrated in vacuum. The residue was purified by reverse phase chromatography to give (2R,3S)-3-amino-4-(3,5-difluorophenyl)-1-(5-methyl-2-(pent-4-enyl)benzylamino)butan-2-ol double trifluoroacetate salt (22 mg, 35%) as a colorless oil. LC-MS (M+H)+=389.63.

後処理

  1. filtrationThe reaction mixture was filtered through a pad of celite
  2. concentrationthe filtrate was concentrated in vacuum
  3. customThe residue was purified by reverse phase chromatography

出典と根拠

ORDレコード
ord-d177d3aa82f44c129f1fc318cfe66f6d
出典データセット
uspto-grants-2010_08
特許番号
US07772221B2

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