Methanol → trans-5-(4-Ethoxy-2-methoxyphenyl)-7-chloro-1-neopentyl-2-oxo-1,2,3,5-tetrahydro-4,1-benzoxazepine-3-acetic acid

HRID 1419067

反応式

HRID 1419067 の反応式
[CH2:1]([O:3][C:4]1[CH:9]=[CH:8][C:7]([C@@H:10]2[C:16]3[CH:17]=[C:18]([Cl:21])[CH:19]=[CH:20][C:15]=3[N:14]([CH2:22][C:23]([CH3:26])([CH3:25])[CH3:24])[C:13](=[O:27])[C@@H:12]([CH2:28][C:29]([O:31]CC)=[O:30])[O:11]2)=[C:6]([O:34][CH3:35])[CH:5]=1)[CH3:2].C(=O)([O-])[O-].[K+].[K+].CO.O1CCCC1>O>[CH2:1]([O:3][C:4]1[CH:9]=[CH:8][C:7]([C@@H:10]2[C:16]3[CH:17]=[C:18]([Cl:21])[CH:19]=[CH:20][C:15]=3[N:14]([CH2:22][C:23]([CH3:25])([CH3:26])[CH3:24])[C:13](=[O:27])[C@@H:12]([CH2:28][C:29]([OH:31])=[O:30])[O:11]2)=[C:6]([O:34][CH3:35])[CH:5]=1)[CH3:2]

参加物

6

実験手順

A mixture of ethyl trans-5-(4-ethoxy-2-methoxyphenyl)-7-chloro-1-neopentyl-2-oxo-1,2,3,5-tetrahydro-4,1-benzoxazepine-3-acetate (0.18 g), potassium carbonate (0.10 g), methanol (10 ml), tetrahydrofuran (10 ml) and water (5 ml) was refluxed for 1.5 h. The resulting mixture was concentrated in vacuo, acidified with 1N hydrochloric acid (50 ml) and extracted with ethyl acetate (50 ml). The extract was washed with water, dried over magnesium sulfate and concentrated in vacuo to give trans-5-(4-ethoxy-2-methoxyphenyl)-7-chloro-1-neopentyl-2-oxo-1,2,3,5-tetrahydro-4,1-benzoxazepine-3-acetic acid as colorless crystals (mp=230°-232° C.).

後処理

  1. temperaturewas refluxed for 1.5 h
  2. concentrationThe resulting mixture was concentrated in vacuo
  3. extractionextracted with ethyl acetate (50 ml)
  4. washThe extract was washed with water
  5. dry with materialdried over magnesium sulfate
  6. concentrationconcentrated in vacuo

出典と根拠

ORDレコード
ord-69a7df2ea17847a7a38817f76b847774
出典データセット
uspto-grants-1999_03
特許番号
US05885979

関連ノート

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