496881-53-9Relevant academic research and scientific papers
New bioactive rosigenin analogues and aromatic polyketide metabolites from the freshwater aquatic fungus Massarina tunicata
Oh, Hyuncheol,Swenson, Dale C.,Gloer, James B.,Shearer, Carol A.
, p. 73 - 79 (2003)
Four new rosigenin analogues (massarigenins A-D; 1-4) and two new aromatic polyketide-derived secondary metabolites (massarinins A and B; 6, 7) and have been isolated from the freshwater aquatic fungus Massarina tunicata. The structures of these compounds were determined primarily by analysis of NMR data, and that of compound 1 was verified by X-ray crystallography. The known compound 4-(2-hydroxybutynoxy)benzoic acid (11) was also obtained, and its absolute stereochemistry was assigned. Several of these metabolites showed antibiotic activity against Gram-positive bacteria.
On the structure of penipratynolene and WA
Jian, Ya-Jun,Wu, Yikang
experimental part, p. 637 - 640 (2010/09/14)
The antipode of the structure proposed for the natural product penipratynolene in the literature was synthesized in high enantiopurity via an chiron approach and fully characterized. However, substantial differences were observed between the physical and
