Issue 43, 2022, Issue in Progress

Norsesquiterpenoids from the octocoral Paralemnalia thyrsoides (Ehrenberg 1834)

Abstract

Three norsesquiterpenoids, pathyspirolactones A (1) and B (2), and napalilactone (3), featuring a γ-spirolactone moiety, were isolated from the cultured octocoral Paralemnalia thyrsoides. The structures of 1–3 were determined by analyzing spectroscopic data, DP4+ computation, specific optical rotation, and X-ray diffraction. In addition, we explored the absolute configurations of pathyspirolactone A (1) and its conformation of the cyclohexane ring to resolve the stereochemical confusion of those of norsesquiterpenoid compounds. Furthermore, we proved that pathyspirolactone B (2) was the first bromine-containing norsesquiterpenoid reported from octocorals.

Graphical abstract: Norsesquiterpenoids from the octocoral Paralemnalia thyrsoides (Ehrenberg 1834)

Supplementary files

Article information

Article type
Paper
Submitted
10 Aug 2022
Accepted
24 Sep 2022
First published
30 Sep 2022
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2022,12, 27970-27976

Norsesquiterpenoids from the octocoral Paralemnalia thyrsoides (Ehrenberg 1834)

G. H. Phan, H. Hu, F. Chang, Z. Wen, J. Chen, H. Chung, Y. Tsai and P. Sung, RSC Adv., 2022, 12, 27970 DOI: 10.1039/D2RA05015C

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