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Actinoranone, a cytotoxic meroterpenoid of unprecedented structure from a marine adapted Streptomyces sp.


ABSTRACT: The isolation and structure elucidation of a new meroterpenoid, actinoranone (1), produced by a marine bacterium closely related to the genus Streptomyces is reported. Actinoranone is composed of an unprecedented dihydronaphthalenone polyketide linked to a bicyclic diterpenoid. The stereochemistry of 1 was defined by application of the advanced Mosher's method and by interpretation of spectroscopic data. Actinoranone (1) is significantly cytotoxic to HCT-116 human colon cancer cells with an LD50 = 2.0 ?g/mL.

SUBMITTER: Nam SJ 

PROVIDER: S-EPMC4112586 | biostudies-literature | 2013 Nov

REPOSITORIES: biostudies-literature

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Actinoranone, a cytotoxic meroterpenoid of unprecedented structure from a marine adapted Streptomyces sp.

Nam Sang-Jip SJ   Kauffman Christopher A CA   Paul Lauren A LA   Jensen Paul R PR   Fenical William W  

Organic letters 20131023 21


The isolation and structure elucidation of a new meroterpenoid, actinoranone (1), produced by a marine bacterium closely related to the genus Streptomyces is reported. Actinoranone is composed of an unprecedented dihydronaphthalenone polyketide linked to a bicyclic diterpenoid. The stereochemistry of 1 was defined by application of the advanced Mosher's method and by interpretation of spectroscopic data. Actinoranone (1) is significantly cytotoxic to HCT-116 human colon cancer cells with an LD50  ...[more]

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