Derivatives Of Pentose Monosaccharides As Anti-Inflammatory Compounds
申请人:Sattigeri Viswajanani Jitendra
公开号:US20090075909A1
公开(公告)日:2009-03-19
The present invention relates to monosaccharide derivatives as anti-inflammatory agents. The compounds of this invention can be useful for inhibition and prevention of inflammation and associated pathologies, including inflammatory and autoimmune diseases, for example, bronchial asthma, rheumatoid arthritis, type I diabetes, multiple sclerosis, allograft rejection or psoriasis. The present invention also relates to pharmacological compositions containing these monosaccharide derivatives, as well as methods of treating bronchial asthma, chronic obstructive pulmonary disease, rheumatoid arthritis, multiple sclerosis, type I diabetes, psoriasis, allograft rejection, and other inflammatory and/or auto immune disorders.
as the oxidant source. This protocol tolerates with different functional groups on the substrates, and the catalytic efficiency is highly Lewis acidity-dependent on added LA, that is, a stronger LA provided a better promotional effect. The 1H NMR studies of the semireaction between the arylacetamide and the Pd(II)/Sc(III) catalyst in HOAc-d4 disclosed the formation of a palladacycle intermediate, and
本工作介绍了以分子氧为氧化剂源的 Pd(II)/LA 催化(LA:路易斯酸)芳基乙酰胺烯化。该协议对底物上的不同官能团具有耐受性,催化效率高度依赖于添加的 LA,即更强的 LA 提供了更好的促进效果。芳基乙酰胺与 Pd(II)/Sc(III) 催化剂在 HOAc- d 4中半反应的1 H NMR 研究揭示了钯环中间体的形成,并且C-H活化步骤是可逆的,这导致了氘代芳基乙酰胺底物和钯环中间体的形成。钯环中间体和烯烃之间的进一步半反应表明,它是一个干净且比 C-H 活化步骤快得多的反应,从而揭示了 Pd(II) 催化的 C-H 活化的多种机理信息。