Protoilludane-Type and Related Nor-Sesquiterpenes from Phellinus hartigii and Their Anti-Hypertrophic Activities in Rat CardiomyocytesBy: Quan Fu, Jing Yuan, Tie-Hua Yang, Jin-Hao Su, Jing-Jing Zhang, Xue-Wen Wu, Hong-Ye Zhang, Wei-Lie Xiao, Chang-Bo Zheng, and Xiao-Li LiJournal of Natural ProductsDOI:https://doi.org/10.1021/acs.jnatprod.3c00985Published:2024-02-03AbstractThree nor-sesquiterp...
Enantioselective Synthesis of Spiroindolines via Cascade Isomerization/Spirocyclization/Dearomatization ReactionBy: Pan, Zhiqiang; Liu, Yuchang; Hu, Fengchi; Liu, Qinglong; Shang, Wenbin; Ji, Xu; Xia, ChengfengOrganic letters Volume:22 Issue:4 Pages:1589-1593 DOI:10.1021/acs.orglett.0c00181Published: 2020-Feb-21 (Epub 2020 Jan 28)Document Type:Journal ArticleAbstractThe spiroindoline skeleton f...
Redox-neutral photochemical Heck-type arylation of vinylphenols activated by visible light By: Kangjiang Liang, Tao Li, Na Li, Yang Zhang, Lei Shen, Zhixian Ma and Chengfeng Xia*Key Laboratory of Medicinal Chemistry for Natural Resource (Ministry of Education and Yunnan Province), State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, School of Chemical Science...
张洪彬教授课题组完成了Spirotryprostatin A、Spirotryprostatin B及6-Methoxyspirotryprostatin B的高效不对称合成。在该合成工作中他们建立了有机催化的二羰基吡嗪(DKP)骨架的合成新方法,利用该方法合成了一批多官能团取代的含二羰基吡嗪化合物;该方法简单高效,提供了DKP化合物的类型,有利于进一步的官能团化。关键化合物的结构经过NOE实验及X-单晶衍射实验确定(图1)。利用建立的有机催化的二羰基吡嗪骨架合成方法,...
在前期对四环二萜化合物结构改造的基础上,张洪彬课题组对赤霉素类化合物GA3进行了A环的芳构化改造,通过酯化、氧化以及金属钯催化的脱羧芳构化反应生成allogibberic acid结构。该化合物经过还原,磺酰化,叠氮化后制备叠氮化合物,之后与多种炔烃反应获得了含氮杂环的一系列衍生物。该类型化合物的最大优点是较稳定,由于含有三氮唑基团而便于成盐(图1)。对上述获得的化合物用五株肿瘤细胞株,分别是白血病、肝癌、肺癌、乳...
肖伟烈研究员课题组从思茅豆腐柴中分离到大蓟黄酮苷,发现其具有较强的抗炎活性。该化合物能够抑制前炎症因子如TNF-α、IL-1β、IL-6的表达,也能抑制LPS诱导的iNOS和COX-2的表达。进一步的研究表明,大蓟黄酮苷是通过抑制NF-κB和MAPK信号通路发挥其抗炎活性的(图1),该结果发表在《International Immunopharmacology, 2018, 59, 384》杂志上,并已申请中国发明专利(申请号:ZL 201810200651.3)。 图1 思茅豆腐柴中分离到...