Nicon Ungur

TL;DR: Two new scalaranes have been isolated from the dorid nudibranch Glossodoris atromarginata and its prey and showed selective cytotoxic activity against human thyroid carcinoma.

TL;DR: In this article, a marine nor-sesquiterpene that contains a unique bicyclic skeleton was synthesized based on the ring contraction of a suitable optically active drimanic epoxy derivative, obtained from commercially available (+)-sclareolide.

TL;DR: In this article, the structure and relative stereochemistry of the new metabolites were established by interpretation of spectral data, and the absolute configuration of C-2′ of the glyceryl moiety was determined by chemical methods for verrucosin-3 (6), as already reported for 2 and 3, and suggested to be the same for all other Verrucosins.

TL;DR: Five new minor metabolites, anisodorins 1-5 (1-5), along with the already reported 6 and 7, have been isolated and chemically characterized and the structure and the relative stereochemistry have been determined by spectroscopic means, while the absolute stereochemistries for 2-5 are suggested to be the same as for the biogenetically related major compounds 6 and7.

TL;DR: A concise synthesis of diastereoisomeric diterpenoid acid glycerides, previously isolated from the skin of some dorid nudibranchs, via 13 E -labd-8(9), 13-dienic acid 4, is described in this article.