Cycloalkyl alkanoic acids as integrin receptor antagonists derivatives
申请人:——
公开号:US20040092538A1
公开(公告)日:2004-05-13
The present invention relates to a class of compounds represented by the Formula I
1
or a pharmaceutically acceptable salt thereof, pharmaceutical compositions comprising compounds of the Formula I, and methods of selectively inhibiting or antagonizing the &agr;
v
&bgr;
3
and/or &agr;
v
&bgr;
5
integrin.
本发明涉及一类由公式I代表的化合物
1
或其药用可接受的盐,包含公式I化合物的药物组合物,以及选择性地抑制或拮抗α
v
β
3
和/或α
v
β
5
整合素的方法。
Friedel–Crafts Alkylation of Aromatics by TiCl4-Promoted Ring Cleavage of 3-Arylcyclobutanones
作者:Jun-ichi Matsuo、Mayu Kanie、Tomoyuki Yoshimura
DOI:10.1055/s-0036-1591497
日期:2018.2
his 90th birthday Abstract Ring cleavage of 3-arylcyclobutanones and successive Friedel–Craftsalkylation of methoxy- or alkyl-substituted benzene derivatives proceeded to give 3,3-diarylbutan-2-ones by activation with titanium tetrachloride. Ring cleavage of 3-arylcyclobutanones and successive Friedel–Craftsalkylation of methoxy- or alkyl-substituted benzene derivatives proceeded to give 3,3-diarylbutan-2-ones
Various 3-phenylcyclobutanones reacted with aliphatic and aromatic nitriles in the presence of Me3SiOTf to afford dihydropyridones by formal [4+2] cycloaddition.
A Practical Synthesis of 3-Acyl Cyclobutanones by [2 + 2] Annulation. Mechanism and Utility of the Zn(II)-Catalyzed Condensation of α-Chloroenamines with Electron-Deficient Alkenes
作者:Jeannette M. O’Brien、Jason S. Kingsbury
DOI:10.1021/jo102257k
日期:2011.3.18
New conditions for the conversion of simple tertiary amides to α-chloroenamines and their use in Zn(II)-catalyzed cycloadditionreactions with commercial α,β-unsaturatedcarbonylcompounds allows rapid, regiocontrolled access to 3-acyl cyclobutanones. Reactions take place at ambient temperature without solvent, giving strained [2 + 2] adducts with all-carbon-substituted quaternary carbon atoms. Ab