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Updated: May 1, 2026

High-throughput Screening for Broad-spectrum Chemical Inhibitors of RNA Viruses
Published on: May 5, 2014
Trigocherrierin A, a potent inhibitor of chikungunya virus replication
Mélanie Bourjot1, Pieter Leyssen2, Johan Neyts3
1EA4267 Epithelial Functions and Dysfunctions, UFR of Medical and Pharmaceutical Sciences, 19 rue Ambroise Paré, 25030 Besançon, France. melanie.bourjot@univ-fcomte.fr.
Abstract:
Trigocherrierin A (1) and trigocherriolide E (2), two new daphnane diterpenoid orthoesters (DDOs), and six chlorinated analogues, trigocherrins A, B, F and trigocherriolides A-C, were isolated from the leaves of Trigonostemon cherrieri. Their structures were identified by mass spectrometry, extensive one- and two-dimensional NMR spectroscopy and through comparison with data reported in the literature. These compounds are potent and selective inhibitors of chikungunya virus (CHIKV) replication. Among the DDOs isolated, compound 1 exhibited the strongest anti-CHIKV activity (EC₅₀ = 0.6 ± 0.1 µM, SI = 71.7).
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