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Hydrochloric Acid → (E)-3-(6-(3-tert-butoxy-3-oxoprop-1-enyl)-5-fluoropyridin-2-yl)-2-(tert-butoxycarbonylamino)propanoic acid

HRID 1524853
ノート
印刷プレビュー

反応式

HRID 1524853 の反応式
[C:1]([O:5][C:6](=[O:29])[CH2:7][CH2:8][C:9]1[N:14]=[C:13]([CH2:15][CH:16]([NH:20][C:21]([O:23][C:24]([CH3:27])([CH3:26])[CH3:25])=[O:22])[C:17]([OH:19])=[O:18])[CH:12]=[CH:11][C:10]=1[F:28])([CH3:4])([CH3:3])[CH3:2].[Li+].[OH-].Cl>C1COCC1.O.CCOC(C)=O>[C:1]([O:5][C:6](=[O:29])/[CH:7]=[CH:8]/[C:9]1[N:14]=[C:13]([CH2:15][CH:16]([NH:20][C:21]([O:23][C:24]([CH3:27])([CH3:26])[CH3:25])=[O:22])[C:17]([OH:19])=[O:18])[CH:12]=[CH:11][C:10]=1[F:28])([CH3:4])([CH3:2])[CH3:3]
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

7

反応物 3

HCID 313Hydrochloric AcidHCID 3939Lithium HydroxideHCID 673667233-(6-(3-tert-Butoxy-3-oxopropyl)-5-fluoropyridin-2-yl)-2-(tert-butoxycarbonylamino)propanoic acid

生成物 1

HCID 67379744(E)-3-(6-(3-tert-butoxy-3-oxoprop-1-enyl)-5-fluoropyridin-2-yl)-2-(tert-butoxycarbonylamino)propanoic acid

試薬・触媒・溶媒 3

HCID 962Water溶媒
HCID 8028
Tetrahydrofuran
溶媒
HCID 8857Ethyl Acetate溶媒

反応条件

温度
0 °C

実験手順

3-(6-(3-tert-Butoxy-3-oxopropyl)-5-fluoropyridin-2-yl)-2-(tert-butoxycarbonylamino)propanoic acid. To a solution of 139C (0.68 g, 1.551 mmol) in THF (10 mL) and water (3 mL) was added LiOH (0.074 g, 3.10 mmol) at 0° C. The reaction was stirred under argon at 0° C. for 2 hrs. 1.0 N HCl (3.1 mL) was added to neutralize the reaction. The reaction mixture was diluted with EtOAc, washed with H2O and brine. The organic phase was dried over magnesium sulfate, filtered and concentrated to give a tan solid of (E)-3-(6-(3-tert-butoxy-3-oxoprop-1-enyl)-5-fluoropyridin-2-yl)-2-(tert-butoxycarbonylamino)propanoic acid. MS (ESI) m/z: 411.1 (M+H)+. To the above obtained intermediate were added catalytic amount of 10% Pd/C and MeOH (15 mL). The reaction mixture was stirred under a hydrogen balloon at rt for 1 h. Catalyst was filtered off and solvent was removed to give 139D as a tan solid. MS (ESI) m/z: 413.1 (M+H)+.

後処理

  1. customthe reaction
  2. washwashed with H2O and brine
  3. dry with materialThe organic phase was dried over magnesium sulfate
  4. filtrationfiltered
  5. concentrationconcentrated

出典と根拠

ORDレコード
ord-abb45e6bbe44440f8c6e8a2e4321e461
出典データセット
uspto-grants-2015_07
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US09079918B2

反応ノート

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