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p-Toluenesulfonic acid monohydrate → rac-(2'S,3'S,4'S)-4'-[4-(tert-butyl-dimethyl-silanyloxy)-2,2-dimethyl-butyl]-6-chloro-2'-(3-chloro-2-fluoro-phenyl)-1H-spiro[indole-3,3'-pyrrolidin]-2-one

HRID 2065418
ノート
印刷プレビュー

反応式

HRID 2065418 の反応式
[NH2:1][CH2:2][CH:3]([CH:18]1[C:26]2[C:21](=[CH:22][C:23]([Cl:27])=[CH:24][CH:25]=2)[NH:20][C:19]1=[O:28])[CH2:4][C:5]([CH3:17])([CH3:16])[CH2:6][CH2:7][O:8][Si:9]([C:12]([CH3:15])([CH3:14])[CH3:13])([CH3:11])[CH3:10].[Cl:29][C:30]1[C:31]([F:38])=[C:32]([CH:35]=[CH:36][CH:37]=1)[CH:33]=O.O.C1(C)C=CC(S(O)(=O)=O)=CC=1>C1(C)C=CC=CC=1>[C:12]([Si:9]([CH3:11])([CH3:10])[O:8][CH2:7][CH2:6][C:5]([CH3:17])([CH3:16])[CH2:4][CH:3]1[CH2:2][NH:1][CH:33]([C:32]2[CH:35]=[CH:36][CH:37]=[C:30]([Cl:29])[C:31]=2[F:38])[C:18]21[C:26]1[C:21](=[CH:22][C:23]([Cl:27])=[CH:24][CH:25]=1)[NH:20][C:19]2=[O:28])([CH3:13])([CH3:14])[CH3:15]
参加物反応条件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 521998p-Toluenesulfonic acid monohydrateHCID 7363353-Chloro-2-fluorobenzaldehydeHCID 58398996Racemic 3-[1-aminomethyl-5-(tert-butyl-dimethyl-silanyloxy)-3,3-dimethyl-pentyl]-6-chloro-1,3-dihydro-indol-2-one

生成物 1

HCID 67336835rac-(2'S,3'S,4'S)-4'-[4-(tert-butyl-dimethyl-silanyloxy)-2,2-dimethyl-butyl]-6-chloro-2'-(3-chloro-2-fluoro-phenyl)-1H-spiro[indole-3,3'-pyrrolidin]-2-one収率 6.1%

試薬・触媒・溶媒

1
HCID 1140Toluene溶媒

反応条件

温度
130 °C

実験手順

To a solution of racemic 3-[1-aminomethyl-5-(tert-butyl-dimethyl-silanyloxy)-3,3-dimethyl-pentyl]-6-chloro-1,3-dihydro-indol-2-one (1.5 g, 3.5 mmol) in toluene (30 mL) was added 3-chloro-2-fluoro-benzaldehyde (Oakwood) (0.56 g, 3.5 mmol) and a catalytic amount of p-toluenesulfonic acid monohydrate (67 mg, 0.35 mmol). The reaction mixture was heated at 130° C. for 2 h. The mixture was cooled to room temperature, then partitioned between ethyl acetate and aqueous NaHCO3 solution. The organic layer was separated, and aqueous layer was extracted with ethyl acetate. The organic layers were combined, dried over MgSO4 and concentrated. The residue was purified by chromatography (50-100% EtOAc in hexanes) to give rac-(2′S,3′S,4′S)-4′-[4-(tert-butyl-dimethyl-silanyloxy)-2,2-dimethyl-butyl]-6-chloro-2′-(3-chloro-2-fluoro-phenyl)-1H-spiro[indole-3,3′-pyrrolidin]-2-one as a white solid (0.12 g, 6%)

後処理

  1. temperatureThe mixture was cooled to room temperature
  2. custompartitioned between ethyl acetate and aqueous NaHCO3 solution
  3. customThe organic layer was separated
  4. extractionaqueous layer was extracted with ethyl acetate
  5. dry with materialdried over MgSO4
  6. concentrationconcentrated
  7. customThe residue was purified by chromatography (50-100% EtOAc in hexanes)

出典と根拠

ORDレコード
ord-9b1b09eea51d457fb8a214018903f441
出典データセット
uspto-grants-2012_10
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08288431B2

反応ノート

読み込み中…

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