Total synthesis of twelve membered resorcyclic acid lactones, (R)-penicimenolide A, (R)-resorcyclide and (R)-dihydroresorcyclide
作者:Pronay Das、D. Srinivasa Reddy
DOI:10.1016/j.tet.2021.132059
日期:2021.4
Resorcyclic Acid Lactones or RALs are a class of fungal secondary polyketides isolated from a variety of fungal strains like Lasiodiplodia theobromae, Penicillium sp., Syncephalastrum racemosum etc. This class of macrocyclic lactones are found to exhibit a broad spectrum of biological activities and are of significant synthetic importance. Herein, we report the first total synthesis of (R)-penicimenolide
间苯二酸内酯或RAL是一类真菌二级聚酮化合物,从多种真菌菌株中分离出来,如Lasiodiplodia theobromae,Penicillium sp。,Syncephalastrum蔓状等。这类大环内酯类被发现表现出的生物学活性的广谱并且是显著合成重要性。在这里,我们报告(R)-penicimenolide A的第一个全合成,从青霉属sp分离的十二元RAL(RAL 12)。(编号SYP-F-7919)。此外,我们还报告了另外两个成员的总合成,即(R)-反式-间环化物和(R)-dihydroresorcyclide。在合成过程中,我们利用闭环易位(RCM)作为构建核心大内酯支架的关键步骤。