Synthesis, Chemical Reactivity as Michael Acceptors, and Biological Potency of Monocyclic Cyanoenones, Novel and Highly Potent Anti-inflammatory and Cytoprotective Agents
摘要:
Novel monocyclic cyanoenones examined to date display unique features regarding chemical reactivity as Michael acceptors and biological potency. Remarkably, in some biological assays, the simple structure is more potent than pentacyclic triterpenoids (e.g., CDDO and bardoxolone methyl) and tricycles (e.g., TBE-31). Among monocyclic cyanoenones, 1 is a highly reactive Michael acceptor with thiol nucleophiles. Furthermore, an important feature of 1 is that its Michael addition is reversible. For the inhibition of NO production, 1 shows the highest potency. Notably, its potency is about three times higher than CDDO, whose methyl ester (bardoxolone methyl) is presently in phase III clinical trials. For the induction of NQO1, 1 also demonstrated the highest potency. These results suggest that the reactivity of these Michael acceptors is closely related to their biological potency. Interestingly, in LPS-stimulated macrophages, 1 causes apoptosis and inhibits secretion of TNF-alpha and IL-1 beta with potencies that are higher than those of bardoxolone methyl and TBE-31.
Synthesis, Chemical Reactivity as Michael Acceptors, and Biological Potency of Monocyclic Cyanoenones, Novel and Highly Potent Anti-inflammatory and Cytoprotective Agents
摘要:
Novel monocyclic cyanoenones examined to date display unique features regarding chemical reactivity as Michael acceptors and biological potency. Remarkably, in some biological assays, the simple structure is more potent than pentacyclic triterpenoids (e.g., CDDO and bardoxolone methyl) and tricycles (e.g., TBE-31). Among monocyclic cyanoenones, 1 is a highly reactive Michael acceptor with thiol nucleophiles. Furthermore, an important feature of 1 is that its Michael addition is reversible. For the inhibition of NO production, 1 shows the highest potency. Notably, its potency is about three times higher than CDDO, whose methyl ester (bardoxolone methyl) is presently in phase III clinical trials. For the induction of NQO1, 1 also demonstrated the highest potency. These results suggest that the reactivity of these Michael acceptors is closely related to their biological potency. Interestingly, in LPS-stimulated macrophages, 1 causes apoptosis and inhibits secretion of TNF-alpha and IL-1 beta with potencies that are higher than those of bardoxolone methyl and TBE-31.
[EN] MONOCYCLIC CYANOENONES AND METHODS OF USE THEREOF<br/>[FR] CYANOÉNONES MONOCYCLIQUES ET LEURS PROCÉDÉS D'UTILISATION
申请人:DARTMOUTH COLLEGE
公开号:WO2010011782A1
公开(公告)日:2010-01-28
The present invention features monocyclic cyanoenone compositions and methods for using the same in the treatment of diseases such as cancer, inflammatory diseases and neurodegenerative diseases.
The present invention features monocyclic cyanoenone compositions and methods for using the same in the treatment of diseases such as cancer, inflammatory diseases and neurodegenerative diseases.
The present invention features monocyclic cyanoenone compositions and methods for using the same in the treatment of diseases such as cancer, inflammatory diseases and neurodegenerative diseases.