Lactones from the Sponge-Derived Fungus Talaromyces rugulosus.

ABSTRACT: The marine-derived fungus Talaromyces rugulosus isolated from the Mediterranean sponge Axinella cannabina and cultured on solid rice medium yielded seventeen lactone derivatives including five butenolides (1-5), seven (3S)-resorcylide derivatives (6-12), two butenolide-resorcylide dimers (13 and 14), and three dihydroisocoumarins (15-17). Among them, fourteen compounds (1-3, 6-16) are new natural products. The structures of the isolated compounds were elucidated by 1D and 2D NMR (Nuclear Magnetic Resonance) spectroscopy as well as by ESI-HRMS (ElectroSpray Ionization-High Resolution Mass Spectrometry). TDDFT-ECD (Time-Dependent Density Functional Theory-Electronic Circular Dichroism) ca

SUBMITTER: Kuppers L 

PROVIDER: S-EPMC5706048 | biostudies-literature | 2017 Nov

REPOSITORIES: biostudies-literature