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1-Ethyl-3-(3'-dimethylaminopropyl)carbodiimide → tert-Butyl 1-{3-[6-(4-oxo-4H-1,3-benzothiazin-2-yl)-2-pyridyl]propanoyl}-2-pyrrolidinecarboxylate

HRID 499600
ノート
印刷プレビュー

反応式

HRID 499600 の反応式
[O:1]=[C:2]1[C:7]2[CH:8]=[CH:9][CH:10]=[CH:11][C:6]=2[S:5][C:4]([C:12]2[N:17]=[C:16]([CH2:18][CH2:19][C:20](O)=[O:21])[CH:15]=[CH:14][CH:13]=2)=[N:3]1.[C:23]([O:27][C:28](=[O:34])[C@@H:29]1[CH2:33][CH2:32][CH2:31][NH:30]1)([CH3:26])([CH3:25])[CH3:24].CCN=C=NCCCN(C)C.C1C=CC2N(O)N=NC=2C=1>CN(C)C=O>[O:1]=[C:2]1[C:7]2[CH:8]=[CH:9][CH:10]=[CH:11][C:6]=2[S:5][C:4]([C:12]2[N:17]=[C:16]([CH2:18][CH2:19][C:20]([N:30]3[CH2:31][CH2:32][CH2:33][CH:29]3[C:28]([O:27][C:23]([CH3:26])([CH3:24])[CH3:25])=[O:34])=[O:21])[CH:15]=[CH:14][CH:13]=2)=[N:3]1
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 4

HCID 159081-Ethyl-3-(3'-dimethylaminopropyl)carbodiimideHCID 757711-HydroxybenzotriazoleHCID 6453108L-Proline 1,1-dimethylethyl esterHCID 99013333-[6-(4-Oxo-4H-1,3-benzothiazin-2-yl)-2-pyridyl]propionic acid

生成物 1

HCID 22939468tert-Butyl 1-{3-[6-(4-oxo-4H-1,3-benzothiazin-2-yl)-2-pyridyl]propanoyl}-2-pyrrolidinecarboxylate収率 78%

試薬・触媒・溶媒 1

HCID 6228Dimethylformamide溶媒

実験手順

3-[6-(4-oxo-4H-1,3-benzothiazin-2-yl)-2-pyridyl]propionic acid (0.25 g, 0.80 mmol) was dissolved in N,N-dimethylformamide (3 ml), and proline tert-butyl ester (0.15 g, 0.88 mmol), WSC (0.31 g, 1.6 mmol) and HOBt (0.22 g, 1.6 mmol) were successively added thereto. The reaction mixture was stirred for 18 hrs, concentrated under reduced pressure and combined with ethyl acetate and water. The organic layer was washed with saturated brine and dried over magnesium sulfate. The solvent was evaporated, and the residue was recrystallized from isopropyl ether to give the titled compound (0.29 g, 78%) as white crystals.

後処理

  1. concentrationconcentrated under reduced pressure
  2. washThe organic layer was washed with saturated brine
  3. dry with materialdried over magnesium sulfate
  4. customThe solvent was evaporated
  5. customthe residue was recrystallized from isopropyl ether

出典と根拠

ORDレコード
ord-2f8f62e700cf44d786d8bb921c76976b
出典データセット
uspto-grants-2010_08
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US07767665B2

反応ノート

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