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Aurantoside K, a new antifungal tetramic acid glycoside from a Fijian marine sponge of the genus Melophlus.

ABSTRACT: A new tetramic acid glycoside, aurantoside K, was isolated from a marine sponge belonging to the genus Melophlus. The structure of the compound was elucidated on the basis of spectroscopic analysis (¹H NMR, ¹H-¹H COSY, HSQC, and HMBC, as well as high-resolution ESILCMS). Aurantoside K did not show any significant activity in antimalarial, antibacterial, or HCT-116 cytotoxicity assays, but exhibited a wide spectrum of antifungal activity against wild type Candida albicans, amphotericin-resistant C. albicans, Cryptococcus neoformans, Aspergillus niger, Penicillium sp., Rhizopus sporangia and Sordaria sp.

SUBMITTER: Kumar R

PROVIDER: S-EPMC3280539 | biostudies-literature | 2012 Jan

REPOSITORIES: biostudies-literature

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Aurantoside K, a new antifungal tetramic acid glycoside from a Fijian marine sponge of the genus Melophlus.

Kumar Rohitesh R Subramani Ramesh R Feussner Klaus-D KD Aalbersberg William W

Marine drugs 20120118 1

A new tetramic acid glycoside, aurantoside K, was isolated from a marine sponge belonging to the genus Melophlus. The structure of the compound was elucidated on the basis of spectroscopic analysis (¹H NMR, ¹H-¹H COSY, HSQC, and HMBC, as well as high-resolution ESILCMS). Aurantoside K did not show any significant activity in antimalarial, antibacterial, or HCT-116 cytotoxicity assays, but exhibited a wide spectrum of antifungal activity against wild type Candida albicans, amphotericin-resistant ...[more]

PMID: 22363230

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