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Lithium Hydroxide → (S)-3-cyclohexyl-2-[2-oxo-4-(3-trifluoromethoxy-phenoxy)-2,5-dihydro-pyrrol-1-yl]-propionic acid

HRID 19287
ノート
印刷プレビュー

反応式

HRID 19287 の反応式
C[O:2][C:3](=[O:30])[C@@H:4]([N:12]1[CH2:16][C:15]([O:17][C:18]2[CH:23]=[CH:22][CH:21]=[C:20]([O:24][C:25]([F:28])([F:27])[F:26])[CH:19]=2)=[CH:14][C:13]1=[O:29])[CH2:5][CH:6]1[CH2:11][CH2:10][CH2:9][CH2:8][CH2:7]1.[OH-].[Li+]>O1CCCC1.O>[CH:6]1([CH2:5][C@H:4]([N:12]2[CH2:16][C:15]([O:17][C:18]3[CH:23]=[CH:22][CH:21]=[C:20]([O:24][C:25]([F:26])([F:27])[F:28])[CH:19]=3)=[CH:14][C:13]2=[O:29])[C:3]([OH:30])=[O:2])[CH2:11][CH2:10][CH2:9][CH2:8][CH2:7]1
参加物反応条件実験手順後処理出典と根拠反応ノート

参加物

4

反応物 2

HCID 3939Lithium HydroxideHCID 66894937(S)-3-cyclohexyl-2-[2-oxo-4-(3-trifluoromethoxy-phenoxy)-2,5-dihydro-pyrrol-1-yl]-propionic acid methyl ester

生成物 1

HCID 66895246(S)-3-cyclohexyl-2-[2-oxo-4-(3-trifluoromethoxy-phenoxy)-2,5-dihydro-pyrrol-1-yl]-propionic acid収率 91.9%

試薬・触媒・溶媒 1

HCID 21881883Oxolane--water (1/1)溶媒

反応条件

温度
23 °C

実験手順

To a stirred solution of (S)-3-cyclohexyl-2-[2-oxo-4-(3-trifluoromethoxy-phenoxy)-2,5-dihydro-pyrrol-1-yl]-propionic acid methyl ester (0.520 g, 0.001 mol) in tetrahydrofuran-water (3:1, 20 mL) was added lithium hydroxide (153 mg, 0.006 mol). The reaction mixture was stirred at 23° C. for 2 h. After this time, the mixture was concentrated and the reaction mixture was diluted with water. The reaction mixture was acidified with 2N hydrochloric acid, during which time precipitation occurred. The precipitate was removed by filtration, washed with cold water and dried in vacuo to obtain (S)-3-cyclohexyl-2-[2-oxo-4-(3-trifluoromethoxy-phenoxy)-2,5-dihydro-pyrrol-1-yl]-propionic acid (380 mg, 76%) as a light yellow solid.

後処理

  1. concentrationAfter this time, the mixture was concentrated
  2. additionthe reaction mixture was diluted with water
  3. customThe reaction mixture was acidified with 2N hydrochloric acid, during which time precipitation
  4. customThe precipitate was removed by filtration
  5. washwashed with cold water
  6. customdried in vacuo

出典と根拠

ORDレコード
ord-ba2b91ea467744d1b64206bf3291f8df
出典データセット
uspto-grants-2010_06
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US07741327B2

反応ノート

読み込み中…

このページの内容参加物反応条件実験手順後処理出典と根拠反応ノート