Synthesis and Liquid Crystal Property of New Fluoro Coumarin Carboxylates
作者:Kittappa M. Mahadevan、Hosanagara N. Harishkumar、Jagadeesh N. Masagalli、Hosapalya T. Srinivasa
DOI:10.1080/15421406.2012.704824
日期:2013.1.1
New liquid crystalline 4-alkoxyphenyl-coumarin-3-carboxylates 6ae, 7ag, 8ae, and 9ae were prepared by reacting various coumarin-3-carboxylic acids 5ad with 4-(alkoxy) phenols 4ag in the presence of 1(3-dimethylaminopropyl-3-ethylcarbodiimide/dimethyl amino pyridine (EDCI/DMAP) as a coupling agent. The structures of the new coumarin derivatives were confirmed by spectral analysis and the liquid crystalline property was established by polarizing optical microscope and by differential scanning calorimetric techniques. The diethyl amine and morpholine were taken as electron-donating and CF3 as electron-withdrawing groups at the seventh position of the coumarin-3-carboxylic acids to check the mesomorphic property in all new 4-alkoxyphenyl-coumarin-3-carboxylates. Among them, only 4-alkoxyphenyl-7-triflouromethyl-coumarin-3-carboxylates 7ag exhibited liquid crystalline SmA phase.
COMPOSITIONS AND METHODS COMPRISING PROTEINASE ACTIVATED RECEPTOR ANTAGONISTS
申请人:EntreMed, Inc.
公开号:EP1778652A2
公开(公告)日:2007-05-02
[EN] COMPOSITIONS AND METHODS COMPRISING PROTEINASE ACTIVATED RECEPTOR ANTAGONISTS<br/>[FR] COMPOSITIONS ET PROCEDES COMPORTANT DES ANTAGONISTES DE RECEPTEUR ACTIVE PAR LA PROTEINASE
申请人:ENTREMED INC
公开号:WO2006023844A2
公开(公告)日:2006-03-02
Compositions and methods comprising proteinase activated receptor antagonists are provided. More particularly, the present invention relates to the use of proteins, peptides and molecules that bind to proteinase activated receptor 2, and inhibit the processes associated with the activation of that receptor. More specifically, the present invention provides novel compositions and methods for the treatment of disorders and diseases such as those associated with abnormal cellular proliferation, angiogenesis, inflammation and cancer.