A new Kdo derivative for the synthesis of an inner-core disaccharide of lipopolysaccharides and lopooligosaccharides
作者:Tsuyoshi Ichiyanagi、Mayumi Fukunaga、Ryoya Tagashira、Shie Hayashi、Masato Nanjo、Ryohei Yamasaki
DOI:10.1016/j.tet.2011.06.039
日期:2011.8
-manno-2-oct-ulopyranoside)onate was found to be a useful new intermediate in the synthesis of an inner-core oligosaccharide of lipooligosaccharides and lipopolysaccharides produced by gram-negative bacteria. This intermediate could be converted to the corresponding glycosyl fluoride and 4,5-diol acceptor with ease. Syntheses of dimeric Kdo, O-(sodium 3-deoxy-α-d-manno-2-octuropyranosylonate)-(2–4)-sodium
甲基(7,8-二- ø -苯甲酰基-4,5- ö异亚丙基-3-脱氧d -甘露-2-辛ulopyranoside)奥尼亚特被发现是在inner-的合成中有用的新的中间革兰氏阴性菌产生的脂寡糖和脂多糖的核心寡糖。该中间体可以容易地转化为相应的糖基氟化物和4,5-二醇受体。二聚体KDO的合成,ø - (钠3-脱氧α- d -甘露-2- octuropyranosylonate) - (2-4)-sodium(烯丙基3-脱氧α- d -甘露-2- octuropyranoside)奥尼亚特,和O-(3-脱氧α- d-钠-甘露成功地证明了-2-octuropyranosylonate)-(2-8)-钠(烯丙基3-deoxy-α- d - manno -2-octuropyranoside)。