Enzymatic Resolution of Medium-Ring Lactones. Synthesis of (<i>S</i>)-(+)-Phoracantholide I
作者:Elie Fouque、Gérard Rousseau
DOI:10.1055/s-1989-27351
日期:——
The horse liver and pig liver esterase hydrolysis of racemic medium ring lactones gives with excellent enantiomeric excess the S- (or R) lactones and the corresponding R- (or S) hydroxy acids. This is the first general method to obtain optically pure medium ring lactones. Application to the preparation of (S)-(+)-Phoracantholide I is reported.
马肝和猪肝酯酶对外消旋中环内酯的水解反应,以优异的对映体过量得到 S-(或 R)内酯和相应的 R-(或 S)羟基酸。这是获得光学纯中环内酯的第一个通用方法。报道了该方法在制备 (S)-(+)-Phoracantholide I 中的应用。
Efficient synthesis of (R)-harmonine – the toxic principle of the multicolored Asian lady beetle (Harmonia axyridis)
作者:Nadja C. Nagel、Anita Masic、Uta Schurigt、Wilhelm Boland
DOI:10.1039/c5ob00461f
日期:——
An efficient and flexible synthesis of (R)-harmonine and putative biosynthetic precursors has been developed. Furthermore, its antimicrobial activity againstLeishmania majoris demonstrated.
FOUQUE, ELIE;ROUSSEAU, GERARD, SYNTHESIS,(1989) N, C. 661-666
作者:FOUQUE, ELIE、ROUSSEAU, GERARD
DOI:——
日期:——
US7919653B2
申请人:——
公开号:US7919653B2
公开(公告)日:2011-04-05
Modular and scalable synthesis of nematode pheromone ascarosides: implications in eliciting plant defense response
作者:Shuai Ning、Lei Zhang、Jinjin Ma、Lan Chen、Guangyao Zeng、Chao Yang、Yingjun Zhou、Xiaoli Guo、Xu Deng
DOI:10.1039/d0ob00652a
日期:——
lation/orthoester rearrangement as the key step. Six diverse ascarosides were synthesized accordingly. Notably, biological investigations revealed that ascr#1 and ascr#18 treatment resulted in enhanced callose accumulation in Arabidopsis leaves. And ascr#18 also increased the expression of defense-related genes such as PR1, PDF1.2, LOX2 and AOS, which might contribute to the enhanced plant defense