申请人:Whitby Research, Inc.
公开号:US05278150A1
公开(公告)日:1994-01-11
The present invention discloses a compound of the formula: ##STR1## where R.sub.1 is hydrogen or the group ##STR2## where R.sub.3 and R.sub.4 are the same or different and are hydrogen, C.sub.1 to C.sub.12 linear or branched alkyl, C.sub.3 to C.sub.7 cycloalkyl, C.sub.6 to C.sub.10 aryl unsubstituted or substituted with C.sub.1 to C.sub.6 linear or branched alkyl, C.sub.1 to C.sub.6 linear or branched alkoxy, nitro, amino, amino substituted with at least one C.sub.1 to C.sub.6 linear or branched alkyl or phenyl, C.sub.2 to C.sub.10 aralkyl, C.sub.4 to C.sub.8 heteroaryl wherein said heteroatom is nitrogen, phosphorous, sulfur or oxygen, and R.sub.2 is hydrogen, or taken together with R.sub.5, forms a chemical bond, and R is a monosaccharide radical selected from the group consisting essentially of glucose, fructose, ribose, 2-deoxyribose, mannose, galactose, xylose and arabinose.
本发明揭示了一种化合物,其化学式为:##STR1## 其中R.sub.1为氢或者基团##STR2## 其中R.sub.3和R.sub.4相同或不同,为氢、C.sub.1到C.sub.12直链或支链烷基、C.sub.3到C.sub.7环烷基、C.sub.6到C.sub.10苯基,该苯基未被取代或被C.sub.1到C.sub.6直链或支链烷基、C.sub.1到C.sub.6直链或支链烷氧基、硝基、氨基、氨基取代的至少一个C.sub.1到C.sub.6直链或支链烷基或苯基、C.sub.2到C.sub.10芳基烷基、C.sub.4到C.sub.8杂芳基取代,其中所述杂原子为氮、磷、硫或氧,而R.sub.2为氢或与R.sub.5一起形成化学键,R为从葡萄糖、果糖、核糖、2-脱氧核糖、甘露糖、半乳糖、木糖和阿拉伯糖中选择的单糖基团。