Synthesis and neurite growth evaluation of new analogues of honokiol, a neolignan with potent neurotrophic activity
摘要:
A versatile synthetic route is reported towards the preparation of new analogues for potent neurotrophic agent biaryl-type lignan honokiol. A focused 24-membered library of derivatives containing five different groups at 5'-position of honokiol has been prepared in fair to good overall yields. Compared to the natural product, or to analogues with a short alkyl chain in this position, these new derivatives have lost most of the neurotrophic activity. (C) 2011 Elsevier Ltd. All rights reserved.
Silver-catalyzed cascade reaction of tosylmethyl isocyanide (TosMIC) with propargylic alcohols to (E)-vinyl sulfones: dual roles of TosMIC
作者:Haniya Bounar、Zhenhua Liu、Lin Zhang、Xiaoxue Guan、Zonglian Yang、Peiqiu Liao、Xihe Bi、Xingqi Li
DOI:10.1039/c5ob01129a
日期:——
An unprecedented silver-catalyzed cascade reaction of tosylmethyl isocyanide (TosMIC) with propargylicalcohols for the efficient synthesis of (E)-vinyl sulfones has been developed where TosMIC plays a dual role as both the reactant in the allenylation of propargylicalcohols and the sulfonyl source.