Front Cover: Asymmetric Total Syntheses, Stereostructures, and Cytotoxicities of Marine Bromotriterpenoids Aplysiol B (Laurenmariannol) and Saiyacenol A (Chem. Asian J. 1/2022).

Configuration determination, cytotoxicity, natural products, structure elucidation, total synthesis The escaping fish are illustrating the feeding deterrence property of aplysiol B. More information can be found in the Communication by Keisuke Nishikawa, Yoshiki Morimoto et al. GLO:BDBM/03jan22:asia202101276-toc-0001.jpg PHOTO (COLOR): . gl GLO:BDBM/03jan22:asia202101276-toc-0001.jpg PHOTO (COLOR): . gl Keywords: configuration determination; cytotoxicity; natural products; structure elucidation; total synthesis EN configuration determination cytotoxicity natural products structure elucidation total synthesis 1 1 1 01/05/22 20220103 NES 220103 B Total assignments of stereostructures b of marine cytotoxic bromotriterpenoids, aplysiol B (laurenmariannol) and saiyacenol A derived from a sea hare or red alga, have been accomplished through their asymmetric syntheses from the known epoxide to elucidate their ambiguous stereostructures. [Extracted from the article]