Related Experiment Video
Updated: Aug 30, 2026

05:17
Functionalized Spirocyclic Heterocycle Synthesis and Cytotoxicity Assay
Published on: February 9, 2021
Synthesis and antiproliferative activity of retroetoposide
Philippe Meresse1, Prokopios Magiatis, Emmanuel Bertounesque
1Laboratoire de Pharmacochimie, UMR 176 CNRS-Institut Curie, Section Recherche, 26 rue d'Ulm, 75248 Paris cedex 05, France.
Bioorganic & Medicinal Chemistry Letters
|November 1, 2003
Abstract:
Retro-4'-demethyl-4-epipodophyllotoxin 6 was synthesized in eight steps and 10% overall yield from 4'-demethyl-4-epipodophyllotoxin 12. Subsequent coupling of 22 with 1-O-trimethylsilyl-4,6-O-ethylidene-beta-D-glucoside 26 afforded retroetoposide 5 which is 10-fold less cytotoxic than etoposide against L1210 cell line.
Related Concept Videos
Antiviral Nucleoside Inhibitors
Antiviral Nucleoside InhibitorsAntiviral nucleoside inhibitors are structural analogs of natural nucleosides that interfere with viral DNA or RNA synthesis. These compounds selectively target viral polymerases due to their resemblance to host nucleosides, thereby disrupting viral genome replication.Mechanism of Acyclovir ActionAcyclovir is a guanosine analog with a three-carbon acyclic side chain. It selectively targets herpes simplex virus type 1 (HSV-1), herpes simplex virus type 2 (HSV-2),...
Mechanisms of Retrovirus-induced Cancers
Retroviruses are RNA viruses that have been shown to cause cancers in diverse species, including chickens, mice, cats, and monkeys. The RNA genomes of these viruses are first reverse-transcribed into single and then double-stranded DNA (dsDNA) copies. This dsDNA called proviral DNA then integrates into the host genome. Subsequently, the host cell transcribes the proviral DNA in concert with the chromosomal DNA. This leads to the production of viral RNA and proteins that assemble at the host...