10.1007/s12272-012-0504-1
This research aimed to synthesize rutaecarpine derivatives and evaluate their inhibitory activities against topoisomerase I and II, enzymes crucial in DNA replication and transcription. The study was driven by the potential of these alkaloids, isolated from Rutaceous plants, to serve as natural product-based cytotoxic agents. The researchers synthesized a series of rutaecarpine derivatives using methods such as Fischer indole synthesis, acetic anhydride-mediated condensation, and ozonolysis, involving chemicals like 2-amino-5-chlorobenzoic acid, piperidin-2-one, benzaldehyde, and phenylhydrazine-HCl. The conclusions drawn from the study were that among the tested compounds, 10-bromorutaecarpine and 3-chlororutaecarpine exhibited strong inhibitory activities against both topo I and II, with effects somewhat stronger than those of the reference drugs camptothecin (CPT) and etoposide. These findings suggest that these rutaecarpine derivatives could be potential candidates for further development as topoisomerase inhibitors for therapeutic applications.