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Lithium Hydroxide → 4-[(4E)-3-(4-Carboxybenzyl)-5-{2-[3-(2-oxopyrrolidin-1-yl)propoxy]phenyl}pent-4-en-1-yl]-benzoic acid

HRID 1512223
ノート
印刷プレビュー

反応式

HRID 1512223 の反応式
[OH-].[Li+].C[O:4][C:5]([C:7]1[CH:44]=[CH:43][C:10]([CH2:11][CH:12](/[CH:25]=[CH:26]/[C:27]2[CH:32]=[CH:31][CH:30]=[CH:29][C:28]=2[O:33][CH2:34][CH2:35][CH2:36][N:37]2[CH2:41][CH2:40][CH2:39][C:38]2=[O:42])[CH2:13][CH2:14][C:15]2[CH:24]=[CH:23][C:18]([C:19]([O:21]C)=[O:20])=[CH:17][CH:16]=2)=[CH:9][CH:8]=1)=[O:6]>C1COCC1.O>[C:5]([C:7]1[CH:8]=[CH:9][C:10]([CH2:11][CH:12](/[CH:25]=[CH:26]/[C:27]2[CH:32]=[CH:31][CH:30]=[CH:29][C:28]=2[O:33][CH2:34][CH2:35][CH2:36][N:37]2[CH2:41][CH2:40][CH2:39][C:38]2=[O:42])[CH2:13][CH2:14][C:15]2[CH:24]=[CH:23][C:18]([C:19]([OH:21])=[O:20])=[CH:17][CH:16]=2)=[CH:43][CH:44]=1)([OH:6])=[O:4]
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

5

反応物 2

HCID 3939Lithium HydroxideHCID 59437424Methyl 4-[(4E)-3-[4-(methoxycarbonyl)benzyl]-5-{2-[3-(2-oxopyrrolidin-1-yl)propoxy]phenyl}pent-4-en-1-yl]benzoate

生成物 1

HCID 249703434-[(4E)-3-(4-Carboxybenzyl)-5-{2-[3-(2-oxopyrrolidin-1-yl)propoxy]phenyl}pent-4-en-1-yl]-benzoic acid

試薬・触媒・溶媒 2

HCID 962Water溶媒HCID 8028Tetrahydrofuran
溶媒

反応条件

温度
50 °C

実験手順

492 mg (20.5 mmol) of lithium hydroxide are added to a solution of 3.90 g (6.8 mmol) of methyl 4-[(4E)-3-[4-(methoxycarbonyl)benzyl]-5-{2-[3-(2-oxopyrrolidin-1-yl)propoxy]phenyl}pent-4-en-1-yl]benzoate (Example 21A) in 20 ml of THF and 20 ml of water, and the mixture is stirred at 50° C. for 12 h. The mixture is then cooled and extracted three times with ethyl acetate. The aqueous phase is then adjusted to pH 2 using 1 M hydrochloric acid and extracted three times with ethyl acetate. The latter organic phases are combined, washed with water and saturated sodium chloride solution and dried over sodium sulfate. After filtration, the solvent is removed to dryness. This gives 2.75 g (content 98%, 4.98 mmol, 73% of theory) of the title compound as a colorless solid.

後処理

  1. temperatureThe mixture is then cooled
  2. extractionextracted three times with ethyl acetate
  3. extractionextracted three times with ethyl acetate
  4. washwashed with water and saturated sodium chloride solution
  5. dry with materialdried over sodium sulfate
  6. filtrationAfter filtration
  7. customthe solvent is removed to dryness

出典と根拠

ORDレコード
ord-8372900194774e2d850ef0f169cca451
出典データセット
uspto-grants-2012_07
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08217063B2

反応ノート

読み込み中…

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