New biologically active epidioxysterols from Stereum hirsutum
From the fungus Stereum hirsutum have been isolated and identified two new epidioxysterols 1, 4, together with two known ones 2 and 3. Their structures were elucidated on the basis of spectroscopic analysis and chemical reactions. Epidioxysterols 1-4 have been shown to possess a significant activity against Mycobacterium tuberculosis.
Cateni, Francesca,Doljak, Bojan,Zacchigna, Marina,Anderluh, Marko,Piltaver, Andrej,Scialino, Giuditta,Banfi, Elena
p. 6330 - 6334
(2008/09/17)
New biologically active marine sesquiterpenoid and steroid from the okinawan sponge of the genus Axinyssa
A new bisabolane-type sesquiterpenoid, (E)-3-isocyanobisabolane-7,10-diene (1), and a new epidioxyergostane-type steroid, 9(11)-dehydroaxinysterol (2), were isolated from the Okinawan sponge of the genus Axinyssa. Their structures were elucidated based on