Diisopropylethylamine → 5-(4-tert-Butoxycarbonylamino-piperidine-1-sulfonyl)-furan-2-carboxylic acid methyl ester

HRID 337226ノート

反応式

HRID 337226 の反応式
C(N(C(C)C)CC)(C)C.[C:10]([O:14][C:15](=[O:23])[NH:16][CH:17]1[CH2:22][CH2:21][NH:20][CH2:19][CH2:18]1)([CH3:13])([CH3:12])[CH3:11].[CH3:24][O:25][C:26]([C:28]1[O:29][C:30]([S:33](Cl)(=[O:35])=[O:34])=[CH:31][CH:32]=1)=[O:27]>C(Cl)Cl>[CH3:24][O:25][C:26]([C:28]1[O:29][C:30]([S:33]([N:20]2[CH2:21][CH2:22][CH:17]([NH:16][C:15]([O:14][C:10]([CH3:13])([CH3:11])[CH3:12])=[O:23])[CH2:18][CH2:19]2)(=[O:35])=[O:34])=[CH:31][CH:32]=1)=[O:27]

参加物

5

反応物 3

HCID 81531DiisopropylethylamineHCID 7238334-(N-Boc-amino)piperidineHCID 2736845Methyl 5-(Chlorosulfonyl)-2-Furoate

生成物 1

HCID 710601525-(4-tert-Butoxycarbonylamino-piperidine-1-sulfonyl)-furan-2-carboxylic acid methyl ester収率 88%

試薬・触媒・溶媒 1

HCID 6344Dichloromethane溶媒2 回

実験手順

Diisopropylethylamine (0.75 ml, 4.45 mmol) was added in one portion to a stirred solution of piperidin-4-yl-carbamic acid tert-butyl ester (0.45 g, 2.26 mmol) in DCM (5 ml) at room temperature. To this mixture was added 5-chlorosulfonyl-furan-2-carboxylic acid methyl ester (0.5 g, 2.26 mmol) in one portion and the mixture was stirred at room temperature under a nitrogen atmosphere for 1 hour. After this time the mixture was diluted with DCM (100 ml) and washed sequentially with HCl (1M solution, 50 ml), NaOH (1M solution, 50 ml) and brine (50 ml). The organic layer was separated, dried (MgSO4), filtered and concentrated. The resulting solid was collected by filtration, washed with diethyl ether and dried under vacuum to give the title compound (0.76 g, 88% yield) as an off-white solid. Tr=1.98 min, m/z (ES+) (M+Na)+ 411.

後処理

  1. washwashed sequentially with HCl (1M solution, 50 ml), NaOH (1M solution, 50 ml) and brine (50 ml)
  2. customThe organic layer was separated
  3. dry with materialdried (MgSO4)
  4. filtrationfiltered
  5. concentrationconcentrated
  6. filtrationThe resulting solid was collected by filtration
  7. washwashed with diethyl ether
  8. customdried under vacuum

出典と根拠

ORDレコード
ord-9b6392ce081241b3b512d6fd7f6ecf7c
出典データセット
uspto-grants-2014_11
特許番号
US08889716B2

反応ノート

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