α-exo-Methylene-γ-butyrolactones and α-exo-methylene-δ-valerolactones constitute an important group of natural and bioactive products. A simple and general protocol of halolactonization of dienoic acids to obtain various α-exo-methylene-lactones in excellent yields is described. The resulting halogenated α-exo-methylene-lactones were found to exhibit potent cytotoxic activities. Copyright © 2019 Elsevier Ltd. All rights reserved.
Haoquan He, Zheng Liu, Wei Wang, Xiaojian Jiang. Synthesis and cytotoxic evaluation of halogenated α-exo-methylene-lactones. Bioorganic & medicinal chemistry. 2020 Feb 01;28(3):115281
PMID: 31889606
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