Graphiumins I and J, New Thiodiketopiperazines from the Marine-derived Fungus Graphium sp. OPMF00224
Natural Product Sciences
; : 255-260, 2015.
Artigo
em Inglês
| WPRIM (Pacífico Ocidental)
| ID: wpr-7750
Biblioteca responsável:
WPRO
ABSTRACT
Two new thiodiketopiperazines (TDKPs), designated graphiumins I (1) and J (2), were isolated from the culture broth of the marine-derived fungus Graphium sp. OPMF00224 by solvent extraction, silica gel column chromatography, and HPLC. Their absolute structures were elucidated by spectroscopic analyses (1D and 2D NMR data, ROESY correlations, and CD data) and chemical methods. They were found to be structurally rare TDKPs with a phenylalanine-derived indolin substructure. Compounds 1 and 2 inhibited yellow pigment production by methicillin-resistant Staphylococcus aureus (MRSA) with IC50 values of 63.5 and 76.5 microg/ml, respectively, without inhibiting its growth, even at 250 microg/ml.
Texto completo:
Disponível
Base de dados:
WPRIM (Pacífico Ocidental)
Assunto principal:
Cromatografia
/
Cromatografia Líquida de Alta Pressão
/
Concentração Inibidora 50
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Staphylococcus aureus Resistente à Meticilina
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Sílica Gel
/
Fungos
Idioma:
Inglês
Revista:
Natural Product Sciences
Ano de publicação:
2015
Tipo de documento:
Artigo