共 50 条
Asymmetric Total Synthesis and Biological Evaluation of the Natural PDE4 Inhibitor Toddacoumalone
被引:15
|作者:
Hou, Ke-Qiang
[1
]
Chen, Xue-Ping
[1
]
Huang, Yiyou
[1
]
Chan, Albert S. C.
[1
]
Luo, Hai-Bin
[1
]
Xiong, Xiao-Feng
[1
]
机构:
[1] Sun Yat Sen Univ, Guangzhou, Peoples R China
基金:
中国国家自然科学基金;
关键词:
DIELS-ALDER REACTIONS;
4+2 CYCLOADDITION;
DESIGN;
ALKYLATION;
COUMARINS;
CATALYSIS;
DIENES;
D O I:
10.1021/acs.orglett.9b04355
中图分类号:
O62 [有机化学];
学科分类号:
070303 ;
081704 ;
摘要:
We describe herein the first asymmetric total synthesis and biological evaluation of the natural PDE4 inhibitor toddacoumalone and its stereoisomers. The key step of the total synthesis is a formal asymmetric [4 + 2] cycloaddition reaction catalyzed by chiral secondary amine catalysts. A variety of pyranoquinolinones and 3-methylcrotonaldehyde are well tolerated under the optimized reaction conditions, which paved the way for further SAR studies. Further biological evaluation showed 1a' with the best PDE4 inhibitory activity (IC50 = 0.18 mu M).
引用
收藏
页码:584 / 588
页数:5
相关论文