Silver-Catalyzed Isocyanide-Alkyne Cycloaddition: A General and Practical Method to Oligosubstituted Pyrroles
作者:Jianquan Liu、Zhongxue Fang、Qian Zhang、Qun Liu、Xihe Bi
DOI:10.1002/anie.201302024
日期:2013.7.1
key: The transition‐metal‐catalyzed cycloaddition of isocyanides and unactivated terminal alkynes has been realized with Ag2CO3 as a unique and robust catalyst (see scheme). The protocol is highly efficient, allowing a broad range of terminal and internal alkynes to react under base‐ and ligand‐free conditions, generating synthetically useful oligosubstitutedpyrroles in high yields.
Ag 2 CO 3是关键:Ag 2 CO 3是一种独特而坚固的催化剂,已经实现了过渡金属催化的异氰酸酯和未活化的末端炔烃的环加成反应(参见方案)。该方案非常高效,可以使各种末端和内部炔烃在无碱和无配体的条件下反应,从而以高收率生成合成上有用的寡取代吡咯。
[EN] FLUOROMETHYL-SUBSTITUTED PYRROLE CARBOXAMIDES IV<br/>[FR] PYRROLE CARBOXAMIDES SUBSTITUÉS PAR UN GROUPE FLUOROMÉTHYLE IV
申请人:GRUENENTHAL GMBH
公开号:WO2015090599A1
公开(公告)日:2015-06-25
The invention relates to pyrrole carboxamides bearing a fluoromethyl- moiety as voltage gated calcium channel blockers, to pharmaceutical compositions containing these compounds and also to these compounds for use in the treatment and/or prophylaxis of pain and further diseases and/or disorders.
NOVEL PYRAZINE COMPOUNDS FOR THE TREATMENT OF INFECTIOUS DISEASES
申请人:Hoffmann-La Roche Inc.
公开号:US20160237090A1
公开(公告)日:2016-08-18
The present invention relates to compounds of the formula (I),
or pharmaceutically acceptable salts, enantiomer or diastereomer thereof, wherein R
1
to R
4
are as described above. The compounds may be useful for the treatment or prophylaxis of hepatitis B virus infection.
The present invention relates to compounds of the formula (I),
or pharmaceutically acceptable salts, enantiomer or diastereomer thereof, wherein R1 to R4 are as described above. The compounds may be useful for the treatment or prophylaxis of hepatitis B virus infection.