Marine alkaloids as the chemical marker for the prey-predator relationship of the sponge Xestospongia sp. and the nudibranch Jorunna funebris.

ABSTRACT: The dietary relationship study between marine sponge Xestospongia sp. and its nudibranch predators Jorunna funebris based on the discovery of isoquinolinequinones has long been studied. In this study, chemical investigation of the sponge Xestospongia sp. and nudibranch J. funebris from the South China Sea yielded a new marine alkaloid neopetroside C (1), together with nine known alkaloids (2-10). The chemical structures of all the compounds were elucidated by extensive spectroscopic analysis. Neopetroside C (1) featured a riboside of nicotinic acid with a rare α-N glycosildic linkage and an acyl residue of (Z)-2-methylbut-2-enoic acid attached to C-5'. The plausible chemical ecology relationship between sponge

SUBMITTER: Wu Q 

PROVIDER: S-EPMC10077215 | biostudies-literature | 2021 Aug

REPOSITORIES: biostudies-literature