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Phosphorus pentachloride → 2,2-dimethyl-propionic acid (R)-2-(7-nitro-1H-indol-2-yl)-4,5-dihydro-thiazol-4-ylmethyl ester

HRID 1515255
ノート
印刷プレビュー

反応式

HRID 1515255 の反応式
COC1C=CC(C[S:8][CH2:9][C@H:10]([NH:19][C:20]([C:22]2[NH:23][C:24]3[C:29]([CH:30]=2)=[CH:28][CH:27]=[CH:26][C:25]=3[N+:31]([O-:33])=[O:32])=O)[CH2:11][O:12][C:13](=[O:18])[C:14]([CH3:17])([CH3:16])[CH3:15])=CC=1.P(Cl)(Cl)(Cl)(Cl)Cl.C(=O)(O)[O-].[Na+]>ClCCl>[N+:31]([C:25]1[CH:26]=[CH:27][CH:28]=[C:29]2[C:24]=1[NH:23][C:22]([C:20]1[S:8][CH2:9][C@@H:10]([CH2:11][O:12][C:13](=[O:18])[C:14]([CH3:17])([CH3:16])[CH3:15])[N:19]=1)=[CH:30]2)([O-:33])=[O:32]
参加物実験手順後処理出典と根拠反応ノート

参加物

5

反応物 3

HCID 24819Phosphorus pentachlorideHCID 516892Sodium BicarbonateHCID 595430732,2-Dimethyl-propionic acid (R)-3-(4-methoxy-benzylsulfanyl)-2-[(7-nitro-1H-indole-2-carbonyl)-amino]-propyl ester

生成物 1

HCID 595431172,2-dimethyl-propionic acid (R)-2-(7-nitro-1H-indol-2-yl)-4,5-dihydro-thiazol-4-ylmethyl ester収率 69.2%

試薬・触媒・溶媒 1

HCID 6344
Dichloromethane
溶媒

実験手順

2,2-Dimethyl-propionic acid (R)-3-(4-methoxy-benzylsulfanyl)-2-[(7-nitro-1H-indole-2-carbonyl)-amino]-propyl ester (1.6 g, 3.2 mmol) prepared in Step B was dissolved in dichloromethane (50 mL). Phosphorus pentachloride (1.3 g, 6.4 mmol) was added thereto, and the mixture was stirred for 5 h at room temperature. Saturated aqueous sodium bicarbonate solution was added to the mixture to quench the reaction. The reaction mixture was extracted with ethyl acetate, dried over anhydrous magnesium sulfate, filtered, and distilled under reduced pressure. The residue was purified by column chromatography to give the title compound (0.8 g, Yield 69%).

後処理

  1. customto quench
  2. customthe reaction
  3. extractionThe reaction mixture was extracted with ethyl acetate
  4. dry with materialdried over anhydrous magnesium sulfate
  5. filtrationfiltered
  6. distillationdistilled under reduced pressure
  7. customThe residue was purified by column chromatography

出典と根拠

ORDレコード
ord-892e70be48c640488d7503bf543a6547
出典データセット
uspto-grants-2012_07
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08222414B2

反応ノート

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