chosen as standard C4 units of 1,3-diene precursors. The reactions are believed to undergo a unique cutting and insertion process, involving a CC bond cleavage of the enaminone and insertion of a new C(sp2) source with the formation of two C–C single bonds. A broad range of substrates can be used to synthesize the corresponding 1,3-dienes under very mild reaction conditions, including low catalyst-loading
One-Pot Synthesis of Symmetrical and Asymmetrical 3-Amino Diynes via Cu(I)-Catalyzed Reaction of Enaminones with Terminal Alkynes
作者:Changyuan Zhang、Huosheng Guo、Lulu Chen、Jiantao Zhang、Mengping Guo、Xuncheng Zhu、Chan Shen、Zeng Li
DOI:10.1021/acs.orglett.1c02848
日期:2021.11.5
economical and efficient protocol for the direct construction of amino skipped diynes through the Cu(I)-catalyzed reaction of enaminones and terminalalkynes has been described. Different kinds of symmetrical and asymmetrical 3-amino diynes could be obtained in up to 83% yield through a one-pot reaction under mild conditions.
已经描述了通过烯胺酮和末端炔烃的 Cu (I) 催化反应直接构建氨基跳过二炔的经济有效的方案。通过在温和条件下的一锅反应,可以以高达 83% 的产率获得不同种类的对称和不对称 3-氨基二炔。
Pyrazolopyrimidines as protein kinase inhibitors
申请人:Paruch Kamil
公开号:US20060094706A1
公开(公告)日:2006-05-04
In its many embodiments, the present invention provides a novel class of pyrazolo[1,5-a]pyrimidine compounds as inhibitors of protein and/or checkpoint kinases, methods of preparing such compounds, pharmaceutical compositions including one or more such compounds, methods of preparing pharmaceutical formulations including one or more such compounds, and methods of treatment, prevention, inhibition, or amelioration of one or more diseases associated with the protein or checkpoint kinases using such compounds or pharmaceutical compositions. The invention also relates to the inhibition of hepatitis C virus (HCV) replication. In particular, embodiments of the invention provide compounds and methods for inhibiting HCV RNA-dependent RNA polymerase enzymatic activity. The invention also provides compositions and methods for the prophylaxis and treatment of HCV infection.
Pyrazolo[1,5a]pyrimidine compounds as antiviral agents
申请人:Neogenesis Pharmaceuticals, Inc.
公开号:US20040038993A1
公开(公告)日:2004-02-26
The invention relates to the inhibition of hepatitis C virus (HCV) replication. In particular, embodiments of the invention provide compounds and methods for inhibiting HCV RNA-dependent RNA polymerase enzymatic activity. The invention also provides compositions and methods for the prophylaxis and treatment of HCV infection.
Photoinduced Three‐Component Cyclization of Arylamines, Enaminones and Difluorobromoacetates to 2,3‐Difunctionalized Quinolines
作者:Jie Huo、Xiao Geng、Wanmei Li、Pengfei Zhang、Lei Wang
DOI:10.1002/adsc.202200615
日期:2022.10.18
A photoinduced multicomponent reaction of arylamines, enaminones and difluorobromoacetates for the synthesis of 2,3-difunctionalized quinolines is reported. This strategy features broad functional groups tolerance and wide substrate scopes that enables further synthetic applications of the obtained products. Mechanistic studies reveal that intermolecular [3+3] cyclization between in-situ generated