The new (-)-(3 R,4 S)-4-hydroxymellein (6) is isolated from the fungus Septoria (Phaeosphaeria) nodorum Berk, together with the previously reported isomer 5. The results so far obtained in this series of metabolites are discussed in relationship with biosynthetic considerations.
The structure 2 is established for 5-deoxybostrycoidin, a new metabolite isolated from cultures of the fungus Nectria haematococca (Berk. and Br.) Wr., on the basis of physico-chemical data (MS, 1H and 13C NMR, acetylation) and by reference to the known bostrycoidin 1.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.