Rhodium(<scp>i</scp>)-catalysed intermolecular alkyne insertion into (2-pyridylmethylene)cyclobutenes
作者:Takanori Matsuda、Takeshi Matsumoto
DOI:10.1039/c6ob00734a
日期:——
Cyclobutenes with 2-pyridylmethylene groups at the 3 position underwent an intermolecular alkyne insertion reaction in the presence of a rhodium(I) catalyst at 170 °C to afford substituted benzenes. Among the different 2-pyridylmethylene groups examined, 3-methyl-2-pyridyl derivatives showed superior activity and readily coupled with various alkynes, including sterically demanding, heteroaromatic and
Carbapenems of the formula
wherein either the 2-fluoren-9-one or 3-fluoren-9-one is attached at the 2-position of the carbapenem are useful antibacterial agents.
2-(substituted-dibenzofuranyl and dibenzothienyl) carbapenem antibacterial agents
申请人:MERCK & CO. INC.
公开号:EP0480712A1
公开(公告)日:1992-04-15
Carbapenems having the formula:
where Z is;
where X is O or S(O)₀₋₂;
are useful antibacterial agents, especially with respect to activity against methicillin resistant Staphylococcus aureus (MRSA).
碳青霉烯类的化学式为
其中 Z 为
其中 X 为 O 或 S(O)₀₋₂;
是一种有用的抗菌剂,特别是对耐甲氧西林金黄色葡萄球菌(MRSA)具有活性。