Stannous chloride dihydrate → HCID 57725359、化合物

HRID 1987869ノート

反応式

HRID 1987869 の反応式
[C:1]([O:5][C:6](=[O:23])[C@@H:7]([NH:10][C:11](=[O:22])[C:12]1[CH:17]=[C:16]([Cl:18])[CH:15]=[CH:14][C:13]=1[N+:19]([O-])=O)[CH2:8][CH3:9])([CH3:4])([CH3:3])[CH3:2].O.O.[Sn](Cl)Cl>C(O)C.[OH-].[Na+]>[C:1]([O:5][C:6](=[O:23])[C@@H:7]([NH:10][C:11](=[O:22])[C:12]1[CH:17]=[C:16]([Cl:18])[CH:15]=[CH:14][C:13]=1[NH2:19])[CH2:8][CH3:9])([CH3:2])([CH3:3])[CH3:4]

参加物

5

反応物 2

HCID 61436Stannous chloride dihydrateHCID 57725370HCID 57725370、化合物

生成物 1

HCID 57725359HCID 57725359、化合物収率 88.1%

試薬・触媒・溶媒 2

HCID 702Ethanol溶媒HCID 14798Sodium Hydroxide溶媒

実験手順

To a stirred solution of (S)-2-(5-chloro-2-nitro-benzoylamino)-butyric acid-tert-butyl ester (5.72 g,) in ethanol (250 ml) at ambient temperature was added tin(II)chloride bis-hydrate (18.8 g). The mixture was stirred at ambient for 16 hours. The volume was reduced to approximately 50 ml under reduced pressure, and reaction mixture was then diluted with 1M NaOH until the precipitate formed re-dissolved (400 ml). The aqueous was then extracted with diethyl ether (3×100 ml). The organic extracts were combined and washed with brine, dried (MgSO4), and concentrated to give the sub-titled compound as a yellow solid (4.60 g, 88% yield). 1H NMR (400 MHz, CDCl3) δ 7.4 (1H, s), 7.2 (1H, d), 6.6 (2H, m), 5.5 (2H, m), 4.6 (1H, m), 2.0 (1H, m), 1.85 (1H, m), 1.5 (9H, s), 0.95 (3H, t) ppm.

後処理

  1. customThe volume was reduced to approximately 50 ml under reduced pressure, and reaction mixture
  2. customformed
  3. dissolutionre-dissolved (400 ml)
  4. extractionThe aqueous was then extracted with diethyl ether (3×100 ml)
  5. washwashed with brine
  6. dry with materialdried (MgSO4)
  7. concentrationconcentrated

出典と根拠

ORDレコード
ord-28ef8f4f48c1453b873b2a8e8c4e7932
出典データセット
uspto-grants-2009_06
特許番号
US07553852B2

反応ノート

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