Pinus Jumaryatno

Oxygenated Terpenoids from the Australian Sponges Coscinoderma matthewsi and Dysidea sp., and the Nudibranch Chromodoris albopunctata

The isolation and structure elucidation of seven new oxygenated terpenoids and eight known terpene metabolites from marine invertebrates collected at the Inner Gneerings Reef, South East Queensland, is discussed. Investigation of the sponge Coscinoderma matthewsi yielded an epoxylactone derivative (1) of the known furanoterpene tetradehydrofurospongin-1 (2). A chemical investigation of the dissected nudibranch Chromodoris albopunctata provided the new oxygenated diterpenes 12α-acetoxyspongian-16-one (10), 20-acetoxyspongian-16-one (12), 20-oxyspongian-16-one propionate (13) and 12α,20-dioxyspongian-16- one dipropionate (14) in conjunction with three other known diterpene metabolites, while two new chromodorolides, D(17) and E(18), in addition to four known diterpenes were isolated from a Dysidea sp.

Note of clarification about: Oxygenated Terpenoids from the Australian Sponges Coscinoderma matthewsi and Dysidea sp., and the Nudibranch Chromodoris albopunctata [vol. 65, pp. 531–538]

The isolation and structure elucidation of seven new oxygenated terpenoids and eight known terpene metabolites from marine invertebrates collected at the Inner Gneerings Reef, South East Queensland, is discussed. Investigation of the sponge Coscinoderma matthewsi yielded an epoxylactone derivative (1) of the known furanoterpene tetradehydrofurospongin-1 (2). A chemical investigation of the dissected nudibranch Chromodoris albopunctata provided the new oxygenated diterpenes 12?-acetoxyspongian-16-one (10), 20-acetoxyspongian-16-one (12), 20-oxyspongian-16-one propionate (13) and 12?,20-dioxyspongian-16-one dipropionate (14) in conjunction with three other known diterpene metabolites, while two new chromodorolides, D (17) and E (18), in addition to four known diterpenes were isolated from a Dysidea sp.

A new Fistularin-3 Derivative from an Australian Sponge Pseudoceratinasp.

Pharmacy Department, Faculty of Mathematic and Natural Sciences, Universitas Islam Indonesia, Yogyakarta 55584, Indonesia; Eskitis Institute, Griffith University, Brisbane, QLD 4111, Australia; Queensland Institute of Medical Research, Locked Bag 2000, Herston 4029, Australia; School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, QLD 4072, Australia; E-mail: m.garson@uq.edu.au