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Sodium hydride → Rac-3-{1-[2-(3,5-dimethoxy-phenyl)-5-methyl-oxazol-4-ylmethyl]-1h-indol-4-yl}-2-ethoxy-propionic acid ethyl ester

HRID 11382
ノート
印刷プレビュー

反応式

HRID 11382 の反応式
[H-].[Na+].[CH2:3]([O:5][C:6](=[O:21])[CH:7]([O:18][CH2:19][CH3:20])[CH2:8][C:9]1[CH:17]=[CH:16][CH:15]=[C:14]2[C:10]=1[CH:11]=[CH:12][NH:13]2)[CH3:4].Cl[CH2:23][C:24]1[N:25]=[C:26]([C:30]2[CH:35]=[C:34]([O:36][CH3:37])[CH:33]=[C:32]([O:38][CH3:39])[CH:31]=2)[O:27][C:28]=1[CH3:29]>CN(C)C=O.O>[CH2:3]([O:5][C:6](=[O:21])[CH:7]([O:18][CH2:19][CH3:20])[CH2:8][C:9]1[CH:17]=[CH:16][CH:15]=[C:14]2[C:10]=1[CH:11]=[CH:12][N:13]2[CH2:23][C:24]1[N:25]=[C:26]([C:30]2[CH:35]=[C:34]([O:36][CH3:37])[CH:33]=[C:32]([O:38][CH3:39])[CH:31]=2)[O:27][C:28]=1[CH3:29])[CH3:4]
参加物実験手順後処理出典と根拠反応ノート

参加物

6

反応物 3

HCID 24758Sodium hydrideHCID 21974252Oxazole, 4-(chloromethyl)-2-(3,5-dimethoxyphenyl)-5-methyl-HCID 69279879Rac-2-ethoxy-3-(1h-indol-4-yl)-propionic acid ethyl ester

生成物 1

HCID 69279866Rac-3-{1-[2-(3,5-dimethoxy-phenyl)-5-methyl-oxazol-4-ylmethyl]-1h-indol-4-yl}-2-ethoxy-propionic acid ethyl ester収率 84%

試薬・触媒・溶媒 2

HCID 962
Water
溶媒
HCID 6228Dimethylformamide溶媒

実験手順

0.048 g (1.10 mmol) Sodium hydride (55% in mineral oil) was added in one portion below 5° C. and under argon to a stirred solution of 0.261 g (1.00 mmol) rac-2-ethoxy-3-(1H-indol-4-yl)-propionic acid ethyl ester and 0.321 g (1.20 mmol) 4-chloromethyl-2-(3,5-dimethoxy-phenyl)-5-methyl-oxazole in 15.0 ml N,N-dimethylformamide. The reaction mixture was warmed up to room temperature and then stirred for 16 hours at ambient temperature. It was then diluted with cold water and extracted two times with ethyl acetate. The combined organic phases were dried over MgSO4, filtered and evaporated. The residue formed was purified by flash-chromatography (silica gel; eluent: gradient of hexane and ethyl acetate) to give 0.413 g (84%) rac-3-{1-[2-(3,5-dimethoxy-phenyl)-5-methyl-oxazol-4-ylmethyl]-1H-indol-4-yl}-2-ethoxy-propionic acid ethyl ester as light yellow solid.

後処理

  1. extractionextracted two times with ethyl acetate
  2. dry with materialThe combined organic phases were dried over MgSO4
  3. filtrationfiltered
  4. customevaporated
  5. customThe residue formed
  6. customwas purified by flash-chromatography (silica gel; eluent: gradient of hexane and ethyl acetate)

出典と根拠

ORDレコード
ord-2bbd1173503f43e4a80adb2b4bc005c0
出典データセット
uspto-grants-2006_08
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US07098228B2

反応ノート

読み込み中…

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