Discovery of Ecopladib, an Indole Inhibitor of Cytosolic Phospholipase Α2α
摘要:
The synthesis and structure-activity relationship of a series of indole inhibitors of cytosolic phospholipase A(2)alpha (cPLA(2)alpha, type IVA phospholipase) are described. Inhibitors of cPLA(2)alpha are predicted to be efficacious in treating asthma as well as the signs and symptoms of osteoarthritis, rheumatoid arthritis, and pain. The introduction of a benzyl sulfonamide substituent at C2 was found to impart improved potency of these inhibitors, and the SAR of these sulfonamide analogues is disclosed. Compound 123 (Ecopladib) is a sub-micromolar inhibitor of cPLA(2)alpha in the GLU micelle and rat whole blood assays. Compound 123 displayed oral efficacy in the rat carrageenan air pouch and rat carrageenan-induced paw edema models.
Compounds that selectively inhibit the binding of ligands to &agr;4&bgr;1 integrin (VLA-4) and methods for their preparation are disclosed. In one embodiment, compounds of the invention are represented by Formula I:
1
As selective inhibitors of VLA-4 mediated cell adhesion, compounds of the present invention are useful in the treatment of conditions associated with such adhesion, including, but not limited to, such conditions as inflammatory and autoimmune responses, diabetes, asthma, psoriasis, inflammatory bowel disease, transplantation rejection, and tumor metastasis. Also disclosed are pharmaceutical compositions, methods of inhibiting VLA-4 mediated cell adhesion and methods of treating conditions associated with LA-4 mediated cell adhesion, which involve compounds of Formula I.
This invention provides substituted indole compounds of the general formula:
1
and pharmaceutically acceptable salt forms thereof, and methods for using the compounds as inhibitors of the activity of various phospholipase enzymes, particularly phospholipase A
2
enzymes, and for the medical treatment, prevention and inhibition of pain and inflammation.
Mechanistic Pathways in CF<sub>3</sub>COOH-Mediated Deacetalization Reactions
作者:Wei Li、Jianchang Li、Yuchuan Wu、Nathan Fuller、Michelle A. Markus
DOI:10.1021/jo902014z
日期:2010.2.19
not the final byproducts as they are in the classical hydrolysis, rather, the two alcohol molecules are converted to two TFA esters under the reaction conditions. On the basis of the NMR evidence, we have proposed that the two TFA esters are formed in two separate steps via a different mechanism along the reaction pathway. Formation of the TFA esters renders the reaction irreversible. To the best of our
羰基的保护以及缩醛和缩酮的脱保护均涉及水分子的参与:缩醛和缩酮的形成是脱水过程,而脱保护通常被称为水解,这是隐含的。顾名思义,总是需要水的存在。在此,我们报告了实验证据和机制研究,为该过程提供了另一种观点。我们已经证明不需要水来将乙缩醛和缩酮转化为相应的羰基。在11 H NMR实验结果表明,TFA介导的乙缩醛向醛的转化是通过半缩醛TFA酯中间体实现的,该中间体与经典的酸催化水解有所区别,在传统的酸催化水解中,半缩醛是负责醛形成的假定中间体。更有趣的是,醇不是最终的副产物,就像它们在经典水解中一样,而是在反应条件下将两个醇分子转化为两个TFA酯。根据NMR证据,我们提出了两种TFA酯是通过沿着反应路径的不同机理在两个单独的步骤中形成的。TFA酯的形成使反应不可逆。据我们所知,
Methods for the use of inhibitors of cytosolic phospholipase A2 in the treatment of thrombosis
申请人:Clerin Valerie
公开号:US20080009485A1
公开(公告)日:2008-01-10
This invention provides methods for the use of substituted indole compounds of the general formula:
and pharmaceutically acceptable salt forms thereof. The invention provides methods for the use of the compounds in the treating or preventing thrombosis in a mammal, or preventing progression of symptoms of thrombosis.
[EN] ANTIVIRAL COMPOUNDS AND THEIR USE<br/>[FR] COMPOSÉS ANTIVIRAUX ET LEUR UTILISATION
申请人:SALUT PRODUCTS PTY LTD
公开号:WO2021062482A1
公开(公告)日:2021-04-08
The invention relates to compounds that have antiviral activity, particularly 4-oxochromane derivatives that have antiviral activity against viruses of the Family Flaviviridae. Methods of treating viruses with the 4-oxochromane compounds, particularly viruses of the Family Flaviviridae, are also described.