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Biotransformation of aristolane- and 2,3-secoaromadendrane-type sesquiterpenoids having a 1,1-dimethylcyclopropane ring by Chlorella fusca var. vacuolata, mucor species, and Aspergillus niger.
The stereostructures of new metabolites were established by a combination of NMR spectroscopy including HMBC and NOESY, X-ray crystallographic analysis, and chemical reaction. Expand
Isolation and structures of new cyclomyltaylane and ent-chamigrane-type sesquiterpenoids from the liverwort Reboulia hemishaerica and their biotransformation by the fungus Aspergillus niger.
Reboulia hemisphaerica, the thalloid liverwort, contained four new cyclomyltaylane- and two new ent-beta-chamigrane-type sesquiterpenoids of which the absolute stereostructures were established by aExpand