Synthetic Strategies for Some Carborane Analogues of Coumarins with Anticancer Activity

Session

Pharmaceutical and Natural Sciences

Description

The intense investigation in medicinal chemistry showed that many of the coumarin derivatives with expressed anticoagulant activity, are showing anticancer effects in the same time. Thus, very known and commercially available medicaments as Warfarin, Phenprocoumon, Sintrom (acenocoumarol) and Bromadiolone are intensively studied for their cytostatic, apoptotic and antiproliferative activities. On the other hand, recently, carborane clusters that can be regarded as phenyl mimics have attracted attention. Most boranes are not very suitable for biological applications due to instability; however, carboranes, where two BH- units of closo-B12 H12 2- are formally substituted by two CH fragments, had shown remarkable biological stability. Thus, many compounds containing carboranes as pharmacophore have received much attention in the last decade, especially in the search of novel effective chemotherapeutic agents. Taking into consideration that many flavonoids and their constitutional isomers, coumarins, have shown noticeable anticancer properties, it was planned to synthesize novel compounds by replacing the aromatic ring of some of their derivatives by a carborane cluster to enhanced metabolic stability as well as enhanced hydrophobicity. Many strategies were employed in order to synthetize the desired carborane analogues of Warfarin and the other coumarin derivatives but only few of them were fully applicable due to the complex steps into the retrosynthetic strategies.

Keywords:

Synthesis, Carborane analogues, Coumarin derivatives, Anticancer activity.

Proceedings Editor

Edmond Hajrizi

ISBN

978-9951-982-15-3

Location

UBT Kampus, Lipjan

Start Date

25-10-2024 9:00 AM

End Date

27-10-2024 6:00 PM

DOI

10.33107/ubt-ic.2024.156

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Oct 25th, 9:00 AM Oct 27th, 6:00 PM

Synthetic Strategies for Some Carborane Analogues of Coumarins with Anticancer Activity

UBT Kampus, Lipjan

The intense investigation in medicinal chemistry showed that many of the coumarin derivatives with expressed anticoagulant activity, are showing anticancer effects in the same time. Thus, very known and commercially available medicaments as Warfarin, Phenprocoumon, Sintrom (acenocoumarol) and Bromadiolone are intensively studied for their cytostatic, apoptotic and antiproliferative activities. On the other hand, recently, carborane clusters that can be regarded as phenyl mimics have attracted attention. Most boranes are not very suitable for biological applications due to instability; however, carboranes, where two BH- units of closo-B12 H12 2- are formally substituted by two CH fragments, had shown remarkable biological stability. Thus, many compounds containing carboranes as pharmacophore have received much attention in the last decade, especially in the search of novel effective chemotherapeutic agents. Taking into consideration that many flavonoids and their constitutional isomers, coumarins, have shown noticeable anticancer properties, it was planned to synthesize novel compounds by replacing the aromatic ring of some of their derivatives by a carborane cluster to enhanced metabolic stability as well as enhanced hydrophobicity. Many strategies were employed in order to synthetize the desired carborane analogues of Warfarin and the other coumarin derivatives but only few of them were fully applicable due to the complex steps into the retrosynthetic strategies.