Reaction Products of γ-Tocopherol with (<i>E</i>)-4-Oxo-2-nonenal in Acidic Acetonitrile
作者:Fumie SAITO、Satoshi IWAMOTO、Ryo YAMAUCHI
DOI:10.1271/bbb.90681
日期:2010.1.23
gamma-Tocopherol was reacted with (E)-4-oxo-2-nonenal (ONE) at 37 degrees C in an acidic acetonitrile solution. The reaction products were isolated by reversed-phase high-performance liquid chromatography and their structures were characterized to be 5-substituted gamma-tocopherols: 5-(1-(furan-2-yl)pentyl)-gamma-tocopherol (1), 3-(1-butyl-4,5,7-trimethyl-7-(4,8,12-trimethyltridecyl)-8,9-dihydro-7H-furo[3
使γ-生育酚在酸性乙腈溶液中与(E)-4-氧-2-壬烯(ONE)在37摄氏度下反应。通过反相高效液相色谱法分离反应产物,并将其结构表征为5-取代的γ-生育酚:5-(1-(呋喃-2-基)戊基)-γ-生育酚(1), 3-(1-丁基-4,5,7-三甲基-7-(4,8,12-三甲基十三烷基)-8,9-二氢-7H-呋喃[3,2-f] chromen-2yl)丙醛(2 )和1-(1-丁基-4,5,7-三甲基-7-(4,8,12-三甲基十三烷基)-8,9-二氢-7H-呋喃[3,2-f] chromen-2- yl)-4-(呋喃-2-基)辛基-3-一(3)。化合物1是在弱酸性条件下的主要产物,而化合物2和3则相对稳定并在反应过程中积累。当在磷酸二鲸蜡酯存在下将γ-生育酚和ONE在亚油酸甲酯中孵育时,化合物1被检测为产物。结果表明,在脂质过氧化的酸性条件下,γ-生育酚可能会捕获一个。