A series of 2-aryl-5-alkyl-7-methoxylbenzo[b]furan derivatives have been synthesized by utilizing the coupling of methyl......

Four 1,4-benzodioxane neolignans were first synthesized from pyrogallol, in which the Claisen rearrangement was used to ......

从广西大风子的皮中分离得到两个新木脂素1和2，并通过高分辨质谱和核磁共振确定了其结构．利用多种二维核磁共振技术，包括HSQC，HMBC，DQF......

目的研究长白山刺五加茎中的化学成分.方法用体积分数为75%的乙醇对刺五加进行提取,提取物分别以正己烷、乙酸乙酯、正丁醇萃取.采......