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Diethyl Ether → (2R)-2-t-Butoxycarbonylamino-2-methyl-4-[1-methyl-5-(5-phenylpentanoyl)pyrrol-2-yl]-1-butanal

HRID 1869667
ノート
印刷プレビュー

反応式

HRID 1869667 の反応式
[C:1]([O:5][C:6]([NH:8][C@:9]([CH3:32])([CH2:12][CH2:13][C:14]1[N:15]([CH3:31])[C:16]([C:19](=[O:30])[CH2:20][CH2:21][CH2:22][CH2:23][C:24]2[CH:29]=[CH:28][CH:27]=[CH:26][CH:25]=2)=[CH:17][CH:18]=1)[CH2:10][OH:11])=[O:7])([CH3:4])([CH3:3])[CH3:2].[Cr](O[Cr]([O-])(=O)=O)([O-])(=O)=O.[NH+]1C=CC=CC=1.[NH+]1C=CC=CC=1.CCOCC>ClCCl>[C:1]([O:5][C:6]([NH:8][C@:9]([CH3:32])([CH2:12][CH2:13][C:14]1[N:15]([CH3:31])[C:16]([C:19](=[O:30])[CH2:20][CH2:21][CH2:22][CH2:23][C:24]2[CH:25]=[CH:26][CH:27]=[CH:28][CH:29]=2)=[CH:17][CH:18]=1)[CH:10]=[O:11])=[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

5

反応物 3

HCID 3283Diethyl EtherHCID 2724130Cornforth reagentHCID 66672878(2R)-2-t-Butoxycarbonylamino-2-methyl-4-[1-methyl-5-(5-phenylpentanoyl)pyrrol-2-yl]butan-1-ol

生成物 1

HCID 86596705(2R)-2-t-Butoxycarbonylamino-2-methyl-4-[1-methyl-5-(5-phenylpentanoyl)pyrrol-2-yl]-1-butanal収率 63%

試薬・触媒・溶媒 1

HCID 6344
Dichloromethane
溶媒

実験手順

To a solution of (2R)-2-t-butoxycarbonylamino-2-methyl-4-[1-methyl-5-(5-phenylpentanoyl)pyrrol-2-yl]butan-1-ol (0.3520 g, 0.80 mmol) obtained in Example (43a) in dichloromethane (8 ml) were added successively molecular sieves 4 A (0.2234 g) and pyridinium dichromate (0.4594 g, 1.22 mmol), and the resulting mixture was stirred at room temperature for 20 hours. After stirring, ether was added to the reaction mixture, and the resulting mixture was filtered. The filtrate was evaporated in vacuo, and the residue was purified by chromatography on a silica gel column using a mixed solvent of hexane and ethyl acetate (3:2) as the eluent to afford the title compound (0.2195 g, yield: 63%).

後処理

  1. stirringAfter stirring
  2. filtrationthe resulting mixture was filtered
  3. customThe filtrate was evaporated in vacuo
  4. customthe residue was purified by chromatography on a silica gel column

出典と根拠

ORDレコード
ord-abe5c5f7109f46fa82495c574c578897
出典データセット
uspto-grants-2009_12
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US07638551B2

反応ノート

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