Total Synthesis of Varitriol, Varioxirane, and Enantiomer of the Proposed Biosynthetic Precursor
作者:Gangarajula Sudhakar、Jakka Raghavaiah
DOI:10.1021/jo4011766
日期:2013.9.6
The first stereoselective total synthesis of varioxirane was accomplished, and the proposed biosynthetic pathway was supported by converting varioxirane to (+)-varitriol. The first total synthesis of enantiomer of the proposed biosynthetic precursor, (1E,3S,4R,5E)-1-(2-(hydroxymethyl)-3-methoxyphenyl)hepta-1,5-diene-3,4-diol, was also achieved by utilizing the unreacted allylic alcohol obtained during
完成了首个立体选择性的水杨酸全合成,并通过将水杨酸转化为(+)-水三酚来支持拟议的生物合成途径。拟议的生物合成前体(1 E,3 S,4 R,5 E)-1-(2-(羟甲基)-3-甲氧基苯基)庚-1,5-二烯-3,4的对映异构体的第一次全合成-二醇也可通过利用在Sharpless动力学拆分步骤中获得的未反应的烯丙醇来获得。其他关键步骤包括霍纳-沃兹沃思-埃蒙斯反应以及将α,β-不饱和酮非对映选择性还原为其相应的醇。