This invention relates to novel compounds having the structural diagram (I) and to their pharmaceutical compositions and to their methods of use. These novel compounds provide a treatment or prophylaxis of cancer.
Compositions containing hydroxy aromatic aldehydes and their use in treatments
申请人:——
公开号:US20030157154A1
公开(公告)日:2003-08-21
Disclosed are pharmaceutical and cosmetic compositions containing hydroxy aromatic aldehyde compounds. The disclosed compositions are useful as topical therapeutics for treating inflammatory dermatologic conditions. The disclosed compositions are also useful in transdermal and other systemic dose forms for treating other inflammatory conditions in mammals.
A surface-confined OMnV(salen) oxene catalyst and high turnover values in asymmetric epoxidation of unfunctionalized olefins
作者:Valentina La Paglia Fragola、Fabio Lupo、Andrea Pappalardo、Giuseppe Trusso Sfrazzetto、Rosa M. Toscano、Francesco P. Ballistreri、Gaetano A. Tomaselli、Antonino Gulino
DOI:10.1039/c2jm34847k
日期:——
Given the widespread importance of chiral epoxides in chemical, biochemical and agricultural fields, an efficient synthesis that avoids wasteful use of the catalyst and assures its total recovery and reuse and high turnover values is highly desirable. We report on a thermally and temporally robust covalent monolayer of (salen)Mn(III) molecules on silica functionalized substrates that resulted in an active heterogeneous catalyst for enantioselective epoxidation of 6-ciano-2,2-dimethyl-chromene, chosen as a model alkene, in high yields and high turnover numbers. No catalyst leaching was observed thus allowing continuous recycling. Experimental XPS evidence for the formation of the surface confined OMnV(salen) oxene species has been obtained.