1-Bromopropane → HCID 22940772、化合物

HRID 1418790

反応式

HRID 1418790 の反応式
[CH3:1][O:2][C:3](=[O:24])[C@H:4]([CH2:16][C:17]1[CH:22]=[CH:21][C:20]([OH:23])=[CH:19][CH:18]=1)[NH:5][C:6]([O:8][CH2:9][C:10]1[CH:15]=[CH:14][CH:13]=[CH:12][CH:11]=1)=[O:7].[H-].[Na+].[CH2:27](Br)[CH2:28][CH3:29].C(=O)(O)[O-].[Na+]>CN(C)C=O.C(OCC)(=O)C>[CH3:1][O:2][C:3](=[O:24])[C@H:4]([CH2:16][C:17]1[CH:18]=[CH:19][C:20]([O:23][CH2:27][CH2:28][CH3:29])=[CH:21][CH:22]=1)[NH:5][C:6]([O:8][CH2:9][C:10]1[CH:15]=[CH:14][CH:13]=[CH:12][CH:11]=1)=[O:7]

参加物

7

反応物 4

HCID 78401-BromopropaneHCID 24758Sodium hydrideHCID 516892Sodium BicarbonateHCID 7010613N-[(Phenylmethoxy)carbonyl]-L-tyrosine methyl ester

生成物 1

HCID 22940772HCID 22940772、化合物

試薬・触媒・溶媒 2

HCID 6228Dimethylformamide溶媒HCID 8857Ethyl Acetate溶媒

実験手順

4.94 g (15 mmol) of N-benzyloxycarbonyl-tyrosine-methyl ester is dissolved in 25 ml of anhydrous N,N-dimethylformamide and mixed at 5° C. under argon with 0.61 g (15.5 mmol) of sodium hydride dispersion (60% in mineral oil). The batch is allowed to stir for 10 minutes, then 1.91 g (15.5 mmol) of propyl bromide is added, the reaction temperature is allowed to increase to room temperature and it is stirred for another two hours. For working-up, the batch is taken up in ethyl acetate and shaken out several times against aqueous sodium bicarbonate solution. The organic phase is separated, dried on magnesium sulfate, filtered and concentrated by evaporation. The residue is chromatographed for purification on silica gel with hexane/diethyl ether/triethylamine.

後処理

  1. stirringit is stirred for another two hours
  2. customThe organic phase is separated
  3. customdried on magnesium sulfate
  4. filtrationfiltered
  5. concentrationconcentrated by evaporation
  6. customThe residue is chromatographed for purification on silica gel with hexane/diethyl ether/triethylamine

出典と根拠

ORDレコード
ord-1b1b6d4e4479430986678588eb86f835
出典データセット
uspto-grants-1999_03
特許番号
US05885548

関連ノート

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