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Title: Halorosellins A and B, unique isocoumarin glucosides from the marine fungus Halorosellinia oceanica
Authors: Maneekarn Chinworrungsee
Prasat Kittakoop
Masahiko Isaka
Ratchada Chanphen
Morakot Tanticharoen
Yodhathai Thebtaranonth
Mahidol University
Thailand National Center for Genetic Engineering and Biotechnology
Keywords: Chemistry
Issue Date: 1-Jan-2002
Citation: Journal of the Chemical Society. Perkin Transactions 1. Vol.22, (2002), 2473-2476
Abstract: Structurally unique isocoumarin glucosides, named halorosellins A (1) and B (2), were isolated from the EtOAc extract of a broth of the marine fungus Halorosellinia oceanica. Other new minor metabolites including 4,8-dihydroxy-6-methoxy-4,5-dimethyl-3-methyleneisochroman-1-one (3), 3-acetyl-7-hydroxy-5-methoxy-3,4-dimethyl-3H-isobenzofuran-1-one (4) and an ophiobolane sesterterpene, 17-dehydroxyhalorosellinic acid (5), were also isolated. Structures of these compounds were elucidated by analyses of spectroscopic data. Compound 4 exhibited mild antimycobacterial activity (MIC value of 200 μg mL-1).
ISSN: 14727781
Appears in Collections:Scopus 2001-2005

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