Lithium Hydroxide → HCID 86593061、化合物

HRID 546462ノート

反応式

HRID 546462 の反応式
[N:1]([C@H:4]1[C@@H:9]([NH:10][C:11]([O:13][C:14]([CH3:17])([CH3:16])[CH3:15])=[O:12])[CH2:8][CH2:7][C@@H:6]([C:18]([O:20]CC2C=CC=CC=2)=[O:19])[CH2:5]1)=[N+:2]=[N-:3].[OH-].[Li+]>O1CCCC1.O>[N:1]([C@H:4]1[C@@H:9]([NH:10][C:11]([O:13][C:14]([CH3:17])([CH3:15])[CH3:16])=[O:12])[CH2:8][CH2:7][C@@H:6]([C:18]([OH:20])=[O:19])[CH2:5]1)=[N+:2]=[N-:3]

参加物

5

反応物 2

HCID 3939Lithium HydroxideHCID 57416175Benzyl (1R,3R,4S)-3-azido-4-[(tert-butoxycarbonyl)amino]cyclohexane-1-carboxylate

生成物 1

HCID 86593061HCID 86593061、化合物収率 125.7%

試薬・触媒・溶媒 2

HCID 962Water溶媒HCID 8028Tetrahydrofuran溶媒

実験手順

Benzyl (1R,3R,4S)-3-azido-4-(N-tert-butoxycarbonylamino)cyclohexane-1-carboxylate (3.5 g) was dissolved in tetrahydrofuran (130 ml) and water (16 ml), and lithium hydroxide (291 mg) was added under ice cooling. After 10 minutes, the mixture was heated to room temperature to continue stirring. After 20 hours, the reaction was stopped, the solvent was distilled off under reduced pressure, and the resultant residue was subjected to column chromatography on silica gel (methanol:dichloromethane=1:20) to obtain (1R,3R,4S)-3-azido-4-(N-tert-butoxycarbonylamino)cyclohexane-1-carboxylic acid (3.34 g) as a pale yellow oil. This product was dissolved in methanol (18 ml) and toluene (64 ml), trimethylsilyldiazomethane (2 M solution, 6.1 ml) was added under ice cooling, and the mixture was heated to room temperature and stirred. After 2 hours, the reaction was stopped, the solvent was distilled off under reduced pressure, and the residue was purified by column chromatography on silica gel (ethyl acetate:hexane=1:4) to obtain the title compound (3.35 g) as a colorless oil.

後処理

  1. waitAfter 20 hours
  2. distillationthe solvent was distilled off under reduced pressure

出典と根拠

ORDレコード
ord-7f3a88487452428b8bb0178dea36020b
出典データセット
uspto-grants-2011_05
特許番号
US07935824B2

反応ノート

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