The synthesis of azaprotoanemonine and three of its methylhomologs, starting from the corresponding 4-oxo-2-pentenoic acids, is described.
描述了从相应的4-氧代-2-戊烯酸开始的氮杂丙烯酰胺基及其三个甲基同系物的合成。
Short Synthesis of the Seed Germination Inhibitor 3,4,5-Trimethyl-2(5<i>H</i>)-furanone
作者:Riccardo Surmont、Guido Verniest、Norbert De Kimpe
DOI:10.1021/jo1010476
日期:2010.8.20
3,4,5-Trimethyl-2(5H)-furanone, a new seed germination inhibitor with very promising agrochemical applications, was efficiently synthesized from 2,3-dimethylmaleic anhydride via nucleophilic addition of methyllithium followed by reduction using sodiumborohydride. This two-step synthesis is straightforward and high-yielding and permits the large-scale preparation of the seed germination inhibitor.
Strigolactone Analogues with a D‐Ring Modified at C‐2
作者:Alinanuswe S. Mwakaboko、Binne Zwanenburg
DOI:10.1002/ejoc.201600576
日期:2016.7
exuded by the root system. SLs are, amongst others, germination stimulants for seed of parasitic weeds. Naturallyoccurring SLs invariably contain three annelated rings, the ABC‐scaffold, connected to a butenolide (the D‐ring) via an enol ether unit. The synthesis of natural SLs requires many steps, therefore there is a continuous search for SL analogues with a simpler structure but with retention
Design and synthesis of thiophenone and furanthione butenolide bioisosteres with inhibitory activity towards acetylcholinesterase
作者:Devashan Naidoo、Martin Pošta、Pallab Kar、Ayan Roy、Akash Anandraj、Eva Tloušťová、Petr Beier、Johannes Van Staden
DOI:10.1016/j.molstruc.2022.133831
日期:2022.12
A library of butenolide bioisosteres with sulfur incorporated in the molecule was synthetized and used for the structure-activity relationship studies associated with their inhibitory activity towards the AChE enzyme. Modifications through bioisosteric exchange of oxygen for sulfur either in position one of the butenolide ring (thiophenones) or on C2 (furanthiones) and further modification of the backbone