N-Iodosuccinimide → HCID 22494282、化合物

反応式

Br[C:2]1[CH:3]=[C:4]([CH2:18][CH:19]([O:25][CH:26]([CH3:28])[CH3:27])[C:20]([O:22][CH2:23][CH3:24])=[O:21])[CH:5]=[C:6]([CH2:9][NH:10][C:11]([O:13][C:14]([CH3:17])([CH3:16])[CH3:15])=[O:12])[C:7]=1[OH:8].[I:29]N1C(=O)CCC1=O>C(#N)C.C(OCC)(=O)C>[I:29][C:2]1[CH:3]=[C:4]([CH2:18][CH:19]([O:25][CH:26]([CH3:28])[CH3:27])[C:20]([O:22][CH2:23][CH3:24])=[O:21])[CH:5]=[C:6]([CH2:9][NH:10][C:11]([O:13][C:14]([CH3:17])([CH3:16])[CH3:15])=[O:12])[C:7]=1[OH:8]

参加物

実験手順

253 mg of ethyl 3-(3-bromo-5-[(tertiary butoxycarbonyl)amino]methyl-4-hydroxyphenyl)-2-isopropoxypropionate was dissolved in 3 ml acetonitrile, and 157 mg of N-iodosuccinimide was added thereto. After stirring at room temperature for 2.5 hours, the reaction mixture was diluted with ethyl acetate. The organic layer was washed with water and saturated aqueous sodium thiosulfate, dried over anhydrous magnesium sulfate and the solvent was evaporated. The residue was purified by silica gel column chromatography, to give 100 mg of ethyl 3-(3-iodo-5-[(tertiary butoxycarbonyl)amino]methyl-4-hydroxyphenyl)-2-isopropoxypropionate was obtained from fractions eluted with hexane-ethyl acetate (4:1).