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1-Ethyl-3-(3'-dimethylaminopropyl)carbodiimide → Di-tert-butyl N-(3-(2-(5-(tert-butoxycarbonyl)-5-(2-tert-butoxy-2-oxoethyl)-4,5-dihydro-1,2-oxazol-3-yl)-4-hydroxyphenyl)propanoyl)-L-aspartate

HRID 1486893
ノート
印刷プレビュー

反応式

HRID 1486893 の反応式
[C:1]([O:5][C:6]([C:8]1([CH2:25][C:26]([O:28][C:29]([CH3:32])([CH3:31])[CH3:30])=[O:27])[O:12][N:11]=[C:10]([C:13]2[CH:18]=[C:17]([OH:19])[CH:16]=[CH:15][C:14]=2[CH2:20][CH2:21][C:22](O)=[O:23])[CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].Cl.[NH2:34][C@H:35]([C:44]([O:46][C:47]([CH3:50])([CH3:49])[CH3:48])=[O:45])[CH2:36][C:37]([O:39][C:40]([CH3:43])([CH3:42])[CH3:41])=[O:38].CCN=C=NCCCN(C)C.C1C=CC2N(O)N=NC=2C=1>O.CN(C=O)C.C(N(CC)CC)C>[C:1]([O:5][C:6]([C:8]1([CH2:25][C:26]([O:28][C:29]([CH3:32])([CH3:31])[CH3:30])=[O:27])[O:12][N:11]=[C:10]([C:13]2[CH:18]=[C:17]([OH:19])[CH:16]=[CH:15][C:14]=2[CH2:20][CH2:21][C:22]([NH:34][C@H:35]([C:44]([O:46][C:47]([CH3:50])([CH3:49])[CH3:48])=[O:45])[CH2:36][C:37]([O:39][C:40]([CH3:42])([CH3:43])[CH3:41])=[O:38])=[O:23])[CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2]
参加物実験手順後処理出典と根拠反応ノート

参加物

8

反応物 4

HCID 159081-Ethyl-3-(3'-dimethylaminopropyl)carbodiimideHCID 757711-HydroxybenzotriazoleHCID 13768146L-Aspartic acid, bis(1,1-dimethylethyl) ester, hydrochlorideHCID 1182928123-(2-(5-(tert-Butoxycarbonyl)-5-(2-tert-butoxy-2-oxoethyl)-4,5-dihydro-1,2-oxazol-3-yl)-4-hydroxyphenyl)propanoic acid

生成物 1

HCID 118292852
Di-tert-butyl N-(3-(2-(5-(tert-butoxycarbonyl)-5-(2-tert-butoxy-2-oxoethyl)-4,5-dihydro-1,2-oxazol-3-yl)-4-hydroxyphenyl)propanoyl)-L-aspartate
収率 47.8%

試薬・触媒・溶媒 3

HCID 962Water溶媒HCID 6228Dimethylformamide溶媒HCID 8471Triethylamine溶媒

実験手順

A mixture of 3-(2-(5-(tert-butoxycarbonyl)-5-(2-tert-butoxy-2-oxoethyl)-4,5-dihydro-1,2-oxazol-3-yl)-4-hydroxyphenyl)propanoic acid (214 mg), di-tert-butyl L-aspartate hydrochloride (161 mg), WSC (89 mg), HOBt (77 mg), triethylamine (0.080 mL), and DMF (2 mL) was stirred at room temperature for 3 days. To the reaction mixture, water was added, followed by extraction with ethyl acetate. The extract was washed with brine and dried over anhydrous magnesium sulfate, and then, the solvent was distilled off under reduced pressure. The residue was purified by silica gel column chromatography (ethyl acetate/hexane) to obtain the title compound (154 mg).

後処理

  1. extractionfollowed by extraction with ethyl acetate
  2. washThe extract was washed with brine
  3. dry with materialdried over anhydrous magnesium sulfate
  4. distillationthe solvent was distilled off under reduced pressure
  5. customThe residue was purified by silica gel column chromatography (ethyl acetate/hexane)

出典と根拠

ORDレコード
ord-488a6733d0c048b89b5d73aff674a861
出典データセット
uspto-grants-2016_08
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US09428470B2

反応ノート

読み込み中…

このページの内容参加物実験手順後処理出典と根拠反応ノート