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Natural Products from Three Nudibranchs: Nembrotha kubaryana, Hypselodoris infucata and Chromodoris petechialis

Author(s): Peter Karuso | Paul J. Scheuer

Journal: Molecules ISSN 1420-3049
Volume: 7; Issue: 1; Start page: 1; Date: 2002;
Original page

Keywords: Tetrapyrrole | spongiane | nakafuran | marine natural products

ABSTRACT
Nudibranchs are shell-less molluscs that are often brightly colored and seemingly defenseless against predation. However, these beautiful animals usually contain large amounts of diet-derived natural products that help defend them against predation. We have isolated a blue tetrapyrrole from Nembrotha kubaryana, the known nakafuran-8 and -9 from Hypselodoris infucata and spongiane-16-one from Chromodoris petechialis. These compounds have previously been found in other marine organisms, thus supporting a link between diet and natural products in the nudibranchs.