Bioactive Bianthraquinones and Meroterpenoids from a Marine-Derived Stemphylium sp. Fungus.

ABSTRACT: Three new bianthraquinones, alterporriol Z1-Z3 (1-3), along with three known compounds of the same structural class, were isolated from the culture broth of a marine-derived Stemphylium sp. fungus. Based upon the results of spectroscopic analyses and ECD measurements, the structures of new compounds were determined to be the 6-6'- (1 and 2) and 1-5'- (3) C-C connected pseudo-dimeric anthraquinones, respectively. Three new meroterpenoids, tricycloalterfurenes E-G (7-9), isolated together with the bianthraquinones from the same fungal culture broth, were structurally elucidated by combined spectroscopic methods. The relative and absolute configurations of these meroterpenoids were determined by modified Mosher's, phenylglycine me

SUBMITTER: Hwang JY 

PROVIDER: S-EPMC7551059 | biostudies-literature | 2020 Aug

REPOSITORIES: biostudies-literature