Portal de Periódicos da CAPES

New quinones from a dictyoceratid sponge

1978; CSIRO Publishing; Volume: 31; Issue: 12 Linguagem: Inglês

10.1071/ch9782685

1445-0038

Romas J. Kazlauskas, PT Murphy, RG Warren, RJ Wells, JF Blount,

Bioactive Compounds and Antitumor Agents

Five new quinones have been isolated from a sponge tentatively classified as Stelospongia conulata. Isospongiaquinone (7) has a rearranged drimane skeleton whereas spongiaquinone (19), cyclo- spongiaquinone-1 (20), cyclospongiaquinone-2 (21) and dehydrocyclospongiaquinone-1 (22) have a normal drimane skeleton. The structures of these were derived from chemical and spectral evidence.