Alkaloids from the Sponge-Associated Fungus Aspergillus sp. (pages 894–906)
Yaming Zhou, Abdessamad Debbab, Attila Mándi, Victor Wray, Barbara Schulz, Werner E. G. Müller, Matthias Kassack, WenHan Lin, Tibor Kurtán, Peter Proksch and Amal H. Aly
Article first published online: 11 DEC 2012 | DOI: 10.1002/ejoc.201201220
Seven new alkaloids including tryptoquivaline K (1) and fumiquinazolines K–P (2–7), bearing a rare 1-aminocyclopropane-1-carboxylic acid residue, together with six known compounds, were isolated from the sponge-associated fungus Aspergillus sp. The structures of the new compounds were assigned by spectral analysis, and their absolute configurations were determined by calculations.