into γ-keto-carboxylic acid moieties without alteration of the sugar moiety attached. The resulting glycosylated building blocks were converted into selected heterocyclic products of the pyridazinone and benzodiazepinone type to exemplify the synthetic potential of these building blocks. All synthetic manipulations employed low environmental impact solvents, reagents, oxidants and protecting group
碳水化合物作为廉价的大规模产品,保证会优秀候选作为可持续原料(FW Lichtenthaler和S.彼得斯,CR詹。,2004,7,65-90)。达到目标
糖类作为工业原料,需要从糖到高价值活性中间体的低环境影响转化。在这里,我们介绍了从基于
蔗糖的糖基氧基甲基
糠醛(GMF)到γ-酮-
羧酸构件的便捷访问。在仔细选择反应条件下采用氧化开环策略,可将
呋喃糖苷配基高产率转化为γ-酮-
羧酸部分,而不会改变所连接的糖部分。所得的糖基化的结构单元被转化为选定的杂环产物。
哒嗪酮 和 苯并二氮杂pin
酮类型来举例说明这些构件的综合潜力。所有合成操作均对环境影响小溶剂,试剂,氧化剂和 保护组 免费转换。