Abstract
Georatusin (1), featuring a highly reduced, methylated polyketide moiety fused to a tryptophan by an amide and ester bond forming a 13-membered ring, was produced by the soil fungus Geomyces auratus. An HMQC-COSY spectrum was measured to build up the connectivities despite the overlapping proton signals. DQF-COSY, HETLOC, J-HMBC, and ROESY were implemented to determine the relative configuration of the flexible moiety. Georatusin (1) shows specific antiparasitic activities against Leishmania donovani and Plasmodium falciparum without obvious cytotoxicity. The biosynthesis of 1 was also proposed.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
