Microsphaerol and seimatorone: two new compounds isolated from the endophytic fungi, Microsphaeropsis sp. and Seimatosporium sp.
Chem Biodivers
; 12(2): 289-94, 2015 Feb.
Article
en En
| MEDLINE
| ID: mdl-25676510
ABSTRACT
A new polychlorinated triphenyl diether named microsphaerol (1), has been isolated from the endophtic fungus Microsphaeropsis sp. An intensive phytochemical investigation of the endophytic fungus Seimatosporium sp., led to the isolation of a new naphthalene derivative named seimatorone (2) and eight known compounds, i.e., 1-(2,6-dihydroxyphenyl)-3-hydroxybutan-1-one (3), 1-(2,6-dihydroxyphenyl)butan-1-one (4), 1-(2-hydroxy-6-methoxyphenyl)butan-1-one (5), 5-hydroxy-2-methyl-4H-chromen-4-one (6), 2,3-dihydro-5-hydroxy-2-methyl-4H-chromen-4-one (7), 8-methoxynaphthalen-1-ol (8), nodulisporins A and B (9 and 10, resp.), and daldinol (11). The structures of 1 and 2 were elucidated by detailed spectroscopic analysis including (1) H- and (13) C-NMR, COSY, HMQC, HMBC, and HR-EI-MS, while the structures of the known compounds were deduced from comparison of their spectral data with those in the literature. Preliminary studies revealed that microsphaerol (1) showed good antibacterial activities against B. Megaterium and E. coli, and good antilagal and antifungal activities against C. fusca, M. violaceum, respectively. On the other hand, seimatorone (2) exhibited moderate antibacterial, antialgal, and antifungal activities.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Ascomicetos
/
Éteres Difenilos Halogenados
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Antibacterianos
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Antifúngicos
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Naftalenos
Idioma:
En
Revista:
Chem Biodivers
Asunto de la revista:
BIOQUIMICA
/
QUIMICA
Año:
2015
Tipo del documento:
Article