Preliminary Studies on the Transformation of Nitrosugars into Branched Chain Iminosugars: Synthesis of 1,4-Dideoxy-4-<i>C</i>-hydroxymethyl- 1,4-imino-pentanols
作者:José M. Otero、Raquel G. Soengas、Juan C. Estévez、Ramón J. Estévez、David J. Watkin、Emma L. Evinson、Robert J. Nash、George W. J. Fleet
DOI:10.1021/ol062887v
日期:2007.2.1
A novel promising strategy for the transformation of nitrosugars into branched pyrrolidines, based on double Henry reaction with formaldehyde followed by reductive ring closure, allowed the first enantiospecific synthesis of a 4-C-hydroxymethyl branched derivative of the well-known glycosidase inhibitor 1,4-dideoxy-1,4-imino-pentanol. This strategy also afforded a new route to some other interesting
一种新的有前途的硝基糖转化为支链吡咯烷的新策略,该方法基于甲醛与甲醛的双重亨利反应,然后进行还原性闭环,从而实现了首个对映体特异性合成众所周知的糖苷酶抑制剂1,4的4-C-羟甲基支化衍生物。 -二脱氧-1,4-亚氨基戊醇。该策略还为寻找其他有趣的衍生物提供了新途径,例如N-羟基,N-丙氧基和亚氨基衍生物,这是一种具有良好生物学特性的新型化合物。[反应:请参见文字]。