Synthesis of Antimicrobial Natural Products Targeting FtsZ: (±)-Dichamanetin and (±)-2‘ ‘‘-Hydroxy-5‘ ‘-benzylisouvarinol-B
摘要:
[GRAPHIC]Two natural products have been synthesized using a ZnCl2-mediated benzylic coupling reaction. Both are potent inhibitors of the GTPase activity of FtsZ, a highly conserved protein that is essential for bacterial cytokinesis.
FtsZ, the bacterial analog of tubulin, is a promising new target for developing new antibiotics. It has been shown that polyphenols inhibit the GTPase activity of FtsZ, thereby inhibiting Z-ring formation during mitosis. The present invention provides novel polyphenols compounds, which can be accessed by the synthesis of dichamametin and 2′″-hydroxy-5″-benzylisouvarinol-B as described herein. These novel compounds are useful in treating infections, particularly infections caused by gram-positive organisms. Methods of preparing the inventive compounds are also provided. The compounds are prepared by the benzylation of pinocembrin or chrysin core structure. Pharmaceutical compositions and method of using the compounds to treat disease are also provided. These compounds may be screened for antimicrobial activity as well as other biological activities such as anti-neoplastic, anti-inflammatory, immunosuppressive, and cytotoxic activity.
FtsZ INHIBITORS AS POTENTIATORS OF BETA-LACTAM ANTIBIOTICS AGAINST METHICILLIN-RESISTANT STAPHYLOCOCCUS
申请人:Merck Sharp & Dohme Corp.
公开号:EP2544528A1
公开(公告)日:2013-01-16
[EN] SYNTHESIS OF INHIBITORS OF FTSZ<br/>[FR] SYNTHESE D'INHIBITEURS DE FTFZ
申请人:HARVARD COLLEGE
公开号:WO2007056188A1
公开(公告)日:2007-05-18
[EN] FtsZ, the bacterial analog of tubulin, is a promising new target for developing new antibiotics. It has been shown that polyphenols inhibit the GTPase activity of FtsZ, thereby inhibiting Z-ring formation during mitosis. The present invention provides novel polyphenols compounds, which can be accessed by the synthesis of dichamametin and 2"'-hydroxy-5"-benzylisouvarinol-B as described herein. These novel compounds are useful in treating infections, particularly infections caused by gram-positive organisms. Methods of preparing the inventive compounds are also provided. The compounds are prepared by the benzylation of pinocembrin or chrysin core structure. Pharmaceutical compositions and method of using the compounds to treat disease are also provided. These compounds may be screened for antimicrobial activity as well as other biological activities such as anti-neoplastic, anti-inflammatory, immunosuppressive, and cytotoxic activity. [FR] Le FtsZ, analogue bactérien de la tubuline, est une nouvelle cible prometteuse pour le développement de nouveaux antibiotiques. On a constaté que des polyphénols inhibent l'activité GTPase de FtsZ, inhibant ainsi la formation de cycle Z durant la mitose. L'invention concerne de nouveaux composés polyphénols que l'on peut obtenir par synthèse de dichamamétine et 2" -hydroxy-5"-benzylisouvarinol-B comme spécifié dans la description. Ces nouveaux composés sont utilisés dans le traitement d'infections, en particulier d'infections causées par des organismes Gram positifs. L'invention concerne en outre des procédés de préparation des composés précités. Les composés sont préparés par benzylation d'une structure à noyau de pinocembrine ou de chrysine. L'invention concerne en outre des compositions pharmaceutiques et un procédé d'utilisation des composés pour le traitement de maladies. Ces composés peuvent être criblés quant à leur activité antimicrobienne et d'autres activités biologiques, par exemple, activités antinéoplasiques, anti-inflammatoires, immunosuppressives et cytotoxiques.