Synthesis and Protein Kinase Inhibitory Activity of Balanol Analogues with Modified Benzophenone Subunits
摘要:
A series of analogues of the protein kinase C (PKC) inhibitory natural product balanol which bear modified benzophenone subunits are described. The analogues were designed with the goal of uncovering structure - activity features that could be used in the development of PKC inhibitors with a reduced polar character compared to balanol itself. The results of these studies suggest that most of the benzophenone features found in the natural product are important for obtaining potent PKC inhibitory compounds. However, several modifications were found to lead to selective inhibitors of the related enzyme protein kinase A (PKA), and several specific modifications to the polar structural elements of the benzophenone were found to provide potent PKC inhibitors. In particular, it was found that replacement of the benzophenone carboxylate with bioisosteric equivalents could lead to potent analogues. Further, a tolerance for lipophilic substituents on the terminal benzophenone ring was uncovered. These results are discussed in light of recently available structural information for PKA.
Synthesis and Protein Kinase Inhibitory Activity of Balanol Analogues with Modified Benzophenone Subunits
摘要:
A series of analogues of the protein kinase C (PKC) inhibitory natural product balanol which bear modified benzophenone subunits are described. The analogues were designed with the goal of uncovering structure - activity features that could be used in the development of PKC inhibitors with a reduced polar character compared to balanol itself. The results of these studies suggest that most of the benzophenone features found in the natural product are important for obtaining potent PKC inhibitory compounds. However, several modifications were found to lead to selective inhibitors of the related enzyme protein kinase A (PKA), and several specific modifications to the polar structural elements of the benzophenone were found to provide potent PKC inhibitors. In particular, it was found that replacement of the benzophenone carboxylate with bioisosteric equivalents could lead to potent analogues. Further, a tolerance for lipophilic substituents on the terminal benzophenone ring was uncovered. These results are discussed in light of recently available structural information for PKA.
[EN] A novel class of therapeutic compounds, denominated Balanoids, is disclosed. Balanoids have protein kinase C inhibitory activity and selectivity among the isoforms of protein kinase C. Balanoids are useful for treatment of diseases related to protein kinase C in animals, especially humans and is especially indicated for treatment of inflammatory diseases. [FR] Nouvelle classe de composés thérapeutiques nommés balanoïdes. Lesdits composés possèdent une activité inhibitrice de la protéine kinase C et une sélectivité parmi les isoformes de la protéine kinase C. Les balanoïdes sont utiles pour traiter les maladies liées à la protéine kinase C chez les animaux, en particulier chez leshumains, et ils sont particulièrement indiqués pour traiter les maladies inflammatoires.
Synthesis and Protein Kinase Inhibitory Activity of Balanol Analogues with Modified Benzophenone Subunits
作者:John W. Lampe、Christopher K. Biggers、Jean M. Defauw、Robert J. Foglesong、Steven E. Hall、Julia M. Heerding、Sean P. Hollinshead、Hong Hu、Philip F. Hughes、G. Erik Jagdmann、Mary George Johnson、Yen-Shi Lai、Christopher T. Lowden、Michael P. Lynch、José S. Mendoza、Marcia M. Murphy、Joseph W. Wilson、Lawrence M. Ballas、Kiyomi Carter、James W. Darges、Jefferson E. Davis、Frederick R. Hubbard、Mark L. Stamper
DOI:10.1021/jm020018f
日期:2002.6.1
A series of analogues of the protein kinase C (PKC) inhibitory natural product balanol which bear modified benzophenone subunits are described. The analogues were designed with the goal of uncovering structure - activity features that could be used in the development of PKC inhibitors with a reduced polar character compared to balanol itself. The results of these studies suggest that most of the benzophenone features found in the natural product are important for obtaining potent PKC inhibitory compounds. However, several modifications were found to lead to selective inhibitors of the related enzyme protein kinase A (PKA), and several specific modifications to the polar structural elements of the benzophenone were found to provide potent PKC inhibitors. In particular, it was found that replacement of the benzophenone carboxylate with bioisosteric equivalents could lead to potent analogues. Further, a tolerance for lipophilic substituents on the terminal benzophenone ring was uncovered. These results are discussed in light of recently available structural information for PKA.