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Updated: Jun 10, 2026

Functionalized Spirocyclic Heterocycle Synthesis and Cytotoxicity Assay
Published on: February 9, 2021
Synthesis and biological evaluation of (+/-)-dinemasone C and analogues
Amie M Stewart1, Kathrin Meier, Barbara Schulz
1Department of Chemistry MS 015, Brandeis University, Waltham, Massachusetts 02454-9110, USA.
Abstract:
Dinemasone C was prepared in three steps (8% overall yield) from cis-tetrahydro-4-hydroxy-6-methyl-2-pyrone by aldol reaction with 2,4-hexadienal, epoxidation followed by cyclization, and epimerization of the ring fusion. Dinemasone C, epi-dinemasone C, anhydrodinemasone BC, and nor-dinemasone B are active against bacteria, including Legionella pneumophila Corby, algae, and fungi.
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