Projektbeschreibung
Wie Katalysatoren „mit Samthandschuhen“ Wasserstoff durch empfindliche bioaktive Einheiten ersetzen
Pharmazeutika verbessern die Lebenserwartung, die Lebensqualität und die Behandlungsergebnisse bei zahllosen Leiden und Krankheiten. Sie in eine Richtung weiterzuentwickeln, damit ihr volles Potenzial ausgeschöpft werden kann, ist jedoch nicht einfach. Ursache dafür sind zum großen Teil die Eigenschaften der allgegenwärtigen, essentiellen, aber schwer aufzubrechenden Kohlenstoff-Wasserstoff-Bindung (C-H). Wasserstoffe aus bioaktiven Molekülen zu entfernen und sie durch funktionelle Einheiten zu ersetzen, erfordert raue Reaktionsbedingungen, die viele dieser funktionellen Gruppen nicht „überleben“. Das EU-finanzierte Projekt RuCat verfügt nun dank seiner außergewöhnlichen neuen Katalysatoren für die C-H-Aktivierung über den passenden Schlüssel, um die Tür zu bisher unmöglichen Funktionalisierungen aufzuschließen.
Ziel
A 2018 joint report from pharma identified organic synthesis as one of the major bottlenecks in drug discovery today. In the highly competitive discovery environments, only fast-to-synthesise molecules are targeted, based mostly on five well-tested and proven synthetic methods. This approach has led to only a small portion of the chemical shape space being explored over the last decades and has been partly blamed for the recent low success rates in new drug development. The report emphasises the need for ideal tools such as late stage functionalisation, which would allow simply replacing any C‒H bond in a bioactive molecule with any desired functionality, thus greatly accelerating the synthesis of new candidates from a lead compound. However, the field of C‒H activation is significantly behind in achieving this aim: most biologically active molecules contain several polar and/or delicate functionalities (‘real world’ molecules), whereas most C‒H activation methods use harsh conditions, incompatible with delicate groups, and catalysts that tend to poison in the presence of polar groups.
This ERC Advanced Grant addresses this major challenge by building a new tool-set of ruthenium catalysts that will finally be able to deliver late stage functionalisation on ‘real world’ molecules, thus allowing a new dawn for development not only of new drugs, but also of agrochemicals, aromatic based organic materials and associated areas. The project builds on a recent key mechanistic breakthrough by the PI's group on the operation of Ru-catalysts (Nature Chemistry 2018) that reveals a completely different pathway to catalyst design from that followed in the field in the last two decades. This new class of catalysts presents unprecedented high reactivity and compatibility with sensitive ‘real world’ molecules. The PI is in a unique position to capitalize on this discovery and lead the way towards global late stage functionalisation of ‘real world’ molecules.
Wissenschaftliches Gebiet
Schlüsselbegriffe
Programm/Programme
Thema/Themen
Finanzierungsplan
ERC-ADG - Advanced GrantGastgebende Einrichtung
M13 9PL Manchester
Vereinigtes Königreich