Structure−Activity Relationship and Molecular Mechanisms of Ethyl 2-Amino-4-(2-ethoxy-2-oxoethyl)-6-phenyl-4<i>H</i>-chromene-3-carboxylate (sHA 14-1) and Its Analogues
作者:Sonia G. Das、Jignesh M. Doshi、Defeng Tian、Sadiya N. Addo、Balasubramanian Srinivasan、David L. Hermanson、Chengguo Xing
DOI:10.1021/jm9005059
日期:2009.10.8
excitingly, our studies of 5q in camptothecin (CCRF-CEM/C2) and mitoxantrone (HL-60/MX2) resistant cancer cells highlight its ability to selectively kill drug-resistant cells over parent cancer cells. 5q inhibits tumor cell growth through the induction of apoptosis, with detailed mechanism of its selectivity toward drug-resistant cancer cells under investigation. These results suggest that 5q is a promising
Non-metallocene compounds, method for the production thereof and use of the same for the polymerisation of olefins
申请人:——
公开号:US20040023940A1
公开(公告)日:2004-02-05
The invention relates to a method for producing special transition metal compounds, to novel transition metal compounds and to the use of the same for the polymerisation of olefins.
这项发明涉及一种生产特殊过渡金属化合物的方法,新型过渡金属化合物以及将其用于烯烃聚合的用途。
Regioselective synthesis of flavone derivatives via DMAP-catalyzed cyclization of o-alkynoylphenols
作者:Masahito Yoshida、Yuta Fujino、Koya Saito、Takayuki Doi
DOI:10.1016/j.tet.2011.09.063
日期:2011.12
A catalytic amount of DMAP promoted cyclization of o-alkynoylphenols via a 6-endo cyclization mode leading to flavone derivatives in high yields without forming 5-exo cyclizedauronederivatives. Utilizing this method, methoxy substituted flavone and alkyl substituted γ-benzopyranone derivatives were synthesized.
Composition for treatment of pathogens that are resistant to tetracyclines
申请人:Bioversys AG
公开号:EP2762134A1
公开(公告)日:2014-08-06
The invention relates to compounds and pharmaceutical compositions useful in combination with tetracyclines in the treatment of bacterial infections caused by Gram-positive and Gram-negative pathogens, with particular efficacy in tetracycline resistant strains. These compounds specifically bind to TetR and therefore prevent the transcriptional activation of tet resistance genes. The compounds have a potentiating effect on the activity of members of the tetracycline family, in particular of tetracycline, minocycline, doxycycline and tigecycline, in the treatment of tetracycline susceptible, intermediate and tetracycline resistant pathogens.
Versatile ruthenium(II) complexes allow for site‐selectiveCH oxygenations with weakly‐coordinating aldehydes. The challenging CH functionalizations proceed with high chemoselectivity by rate‐determining CH metalation. The new method features an ample substrate scope, which sets the stage for the step‐economical preparation of various bioactive heterocycles.