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Chemical relationships between the sea hare Aplysia parvula and the red seaweed Laurencia filiformis from Tasmania

Citation

Jongaramruong, J and Blackman, AJ and Skelton, BW and White, AH, Chemical relationships between the sea hare Aplysia parvula and the red seaweed Laurencia filiformis from Tasmania, Australian Journal of Chemistry, 55, (4) pp. 275-280. ISSN 0004-9425 (2002) [Refereed Article]

DOI: doi:10.1071/CH01171

Abstract

One new 5-acetoxy-2,10-dibromo-3-chloro-7,8-epoxy-α-chamigrene (1) and three known sequiterpenes, namely 2,10-dibromo-3-chloro-7-chamigrene (2), deoxyprepacifenol (3), and pacifenol (4), were isolated from both the sea hare Aplysia parvula and the red seaweed Laurencia filiformis. On the other hand, pentadecanal and its aldol product (E)-2-tridecyl-2-heptadec-2-enal (6) were only separated from L. filiformis while the previously known fimbrolide (5) from Delisea sp. and the known purple pigment, aplysioviolin (7), were isolated only from the sea hare A. parvula. The structure of aplysioviolin (7) has been revised and the nuclear magnetic resonance spectra of (2) fully assigned for the first time. A single crystal X-ray study is reported for (1). The brine shrimp bioassay showed 90% mortality using pacifenol, at a concentration of 23 μg/mL in seawater after 24 h as the strongest activity among all the test compounds (1)-(4) and (7).

Item Details

Item Type:Refereed Article
Research Division:Chemical Sciences
Research Group:Organic Chemistry
Research Field:Organic Chemistry not elsewhere classified
Objective Division:Expanding Knowledge
Objective Group:Expanding Knowledge
Objective Field:Expanding Knowledge in the Chemical Sciences
Author:Jongaramruong, J (Miss Jongkolnee Jongaramruong)
Author:Blackman, AJ (Dr Adrian Blackman)
ID Code:24310
Year Published:2002
Web of Science® Times Cited:13
Deposited By:Chemistry
Deposited On:2002-08-01
Last Modified:2011-08-02
Downloads:0

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