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Sodium hydride → 4-Benzyl 1,4-di-tert-butyl (1S)-5-[5-(benzyloxy)pyridin-2-yl]-1-[(tert-butoxycarbonyl)amino]pentane-1,4,4-tricarboxylate

HRID 591303
ノート
印刷プレビュー

反応式

HRID 591303 の反応式
[CH2:1]([O:8][C:9]([CH:11]([CH2:19][CH2:20][C@H:21]([NH:29][C:30]([O:32][C:33]([CH3:36])([CH3:35])[CH3:34])=[O:31])[C:22]([O:24][C:25]([CH3:28])([CH3:27])[CH3:26])=[O:23])[C:12]([O:14][C:15]([CH3:18])([CH3:17])[CH3:16])=[O:13])=[O:10])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[H-].[Na+].[CH2:39]([O:46][C:47]1[CH:48]=[CH:49][C:50]([CH2:53]Br)=[N:51][CH:52]=1)[C:40]1[CH:45]=[CH:44][CH:43]=[CH:42][CH:41]=1>CN(C)C=O>[CH2:39]([O:46][C:47]1[CH:48]=[CH:49][C:50]([CH2:53][C:11]([C:12]([O:14][C:15]([CH3:18])([CH3:17])[CH3:16])=[O:13])([C:9]([O:8][CH2:1][C:2]2[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=2)=[O:10])[CH2:19][CH2:20][C@H:21]([NH:29][C:30]([O:32][C:33]([CH3:36])([CH3:35])[CH3:34])=[O:31])[C:22]([O:24][C:25]([CH3:26])([CH3:27])[CH3:28])=[O:23])=[N:51][CH:52]=1)[C:40]1[CH:41]=[CH:42][CH:43]=[CH:44][CH:45]=1
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 24758Sodium hydrideHCID 797999495-(Benzyloxy)-2-(bromomethyl)pyridineHCID 117812690Di-tert-butyl (5S)-2-(benzyloxycarbonyl)-5-[(tert-butoxycarbonyl)amino]hexanedioate

生成物 1

HCID 1178126974-Benzyl 1,4-di-tert-butyl (1S)-5-[5-(benzyloxy)pyridin-2-yl]-1-[(tert-butoxycarbonyl)amino]pentane-1,4,4-tricarboxylate収率 65.3%

試薬・触媒・溶媒 1

HCID 6228
Dimethylformamide
溶媒
2 回

実験手順

To a solution of 360 mg of di-tert-butyl (5S)-2-(benzyloxycarbonyl)-5-[(tert-butoxy-carbonyl)amino]hexanedioate (0.71 mmol; see example 12f) in N,N-dimethyl formamide (10 mL) was added under argon atmosphere 26 mg of sodium hydride (60% in oil, 0.64 mmol). The resulting mixture was stirred at room temperature for 30 minutes. A solution of 197 mg 5-(benzyloxy)-2-(bromomethyl)pyridine (prepared according to example 17a; 0.71 mmol) in N,N-dimethylformamide (5 mL) was added, and the mixture was stirred at 60° C. for one hour. After cooling to room temperature, the mixture was concentrated in vacuo and the residue was purified by preparative HPLC (method A) to give 327 mg of the title compound (65% yield).

後処理

  1. stirringthe mixture was stirred at 60° C. for one hour
  2. temperatureAfter cooling to room temperature
  3. concentrationthe mixture was concentrated in vacuo
  4. customthe residue was purified by preparative HPLC (method A)

出典と根拠

ORDレコード
ord-f314c9095a6a455185bd6e47f193a335
出典データセット
uspto-grants-2016_01
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US09238631B2

反応ノート

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