28115-68-6Relevant academic research and scientific papers
Design and synthesis of novel arctigenin analogues for the amelioration of metabolic disorders
Duan, Shudong,Huang, Suling,Gong, Jian,Shen, Yu,Zeng, Limin,Feng, Ying,Ren, Wenming,Leng, Ying,Hu, Youhong
, p. 386 - 391 (2015/04/27)
Analogues of the natural product (-)-arctigenin, an activator of adenosine monophosphate activated protein kinase, were prepared in order to evaluate their effects on 2-deoxyglucose uptake in L6 myotubes and possible use in ameliorating metabolic disorders. Racemic arctigenin 2a was found to display a similar uptake enhancement as does (-)-arctigenin. As a result, the SAR study was conducted utilizing racemic compounds. The structure-activity relationship study led to the discovery of key substitution patterns on the lactone motif that govern 2-deoxyglucose uptake activities. The results show that replacement of the para-hydroxyl group of the C-2 benzyl moiety of arctigenin by Cl has a pronounced effect on uptake activity. Specifically, analogue 2p, which contains the p-Cl substituent, stimulates glucose uptake and fatty acid oxidation in L6 myotubes.
Enantioselective synthesis of natural dibenzylbutyrolactone lignans (-)-enterolactone, (-)-hinokinin, (-)-pluviatolide, (-)-enterodiol, and furofuran lignan (-)-eudesmin via tandem conjugate addition to γ-alkoxybutenolides1,2
Van Oeveren,Jansen,Feringa
, p. 5999 - 6007 (2007/10/02)
A general and efficient method is described for the asymmetric synthesis of a variety of liguans. 5-(Menthyloxy)-2(5H)-furanones 5 proved to be excellent chiral synthons in this respect and could be transformed with complete stereoselectivity into a number of lignans. The addition of lithiated dithianes 7 to enantiomerically pure butenolides 5 was followed by quenching of the resulting lactone enolate anions with a benzylbromide (9) or with an aldehyde (6). This tandem addition quenching procedure gave the diastereomerically pure adducts 11, 26, or 27 in 50-67% yield, with a carbon skeleton as found in most natural lignans. As examples of the wide applicability of this method, the syntheses of the enantiomerically pure natural lignans (-)-hinokinin (23b), (-)-enterolactone (24a), (-)-pluviatolide (24c), and (-)-enterodiol (25) in overall yields of 29-37% from 5a and (-)eudesmin (30) in 16% overall yield from 5b are described.
