Synthetic studies on nucleoside-type muraymycins antibiotics based on the use of sulfur ylides. Synthesis of bioactive 5′-epimuraymycin analogues
作者:Francisco Sarabia、Laura Martín-Ortiz
DOI:10.1016/j.tet.2005.09.086
日期:2005.12
A new synthetic approach to the 5-epimers of muraymycins, a family of complex nucleoside-type antibiotics, is reported based on the synthesis of epoxy amides obtained via the reaction of sulfur ylides with the uridyl aldehyde derivatives 16, 29 and 30, followed by a subsequent oxirane ring opening reaction with diamines. This new strategy offers an excellent opportunity for the preparation of muraymycin
一种新的合成方法,以muraymycins的5差向异构体,复杂的核苷类抗生素家族,报道基于经由硫叶立德与尿苷酰醛衍生物的反应得到的环氧酰胺的合成16,29和30,随后随后的环氧乙烷与二胺的开环反应。这一新策略为制备具有生物学意义的穆雷霉素类似物提供了极好的机会。实际上,生物学研究表明,这些5'-表位分子在生物学上与天然抗生素一样有效,除了代表着一条趋向于天然同源物的趋同而灵活的途径外。