5-Methoxyuridine (Mo5U) is a purine nucleoside analog with a broad spectrum of antitumor activity, targeting malignant tumors of the inert lymphatic system and inducing apoptosis.

(-)-Anonaine can be extracted from several species of Magnoliaceae and Annelidae and has antimalarial, antibacterial, antifungal, antioxidant, anticancer, antidepressant and vasodilatory activities.

Clitocine, an adenosine analogue derived from mushrooms, is a potent transcriptional readout agent, an inhibitor of nonsense mutations, and has anticancer activity, inducing the production of p53 protein in cells carrying the p53 nonsense mutation allele.