Author(s): Rawiwan Wattanadilok | Pichan Sawangwong | Cátia Rodrigues | Honorina Cidade | Madalena Pinto | Eugenia Pinto | Artur Silva | Anake Kijjoa
Journal: Marine Drugs
ISSN 1660-3397
Volume: 5;
Issue: 2;
Start page: 40;
Date: 2007;
Original page
Keywords: Haliclona baeri | Haliclona cymaeformis | tetillapyrone | nortetillapyrone | antifungal activity | dermatophytes
ABSTRACT
A new compound maleimide-5-oxime was isolated, together with 3,4- dihydroxybenzoic acid, tetillapyrone, from the ethyl acetate extract of the marine sponge Haliclona baeri while tetillapyrone, nortetillapyrone, p-hydroxybenzaldehyde and phenylacetic acid were isolated from the ethyl acetate extract of Haliclona cymaeformis, collected from the Gulf of Thailand. The structures of tetillapyrone and nortetillapyrone were re-examined using HMBC correlations. Maleimide-5-oxime, tetillapyrone and nortetillapyrone were found to be inactive against three human tumor cell lines (the estrogen-dependent ER(+) MCF-7, the estrogen-independent ER(-) MDA-MB-231 and NCI-H460. Maleimide-5-oxime, p-hydroxybenzaldehyde, phenylacetic acid, tetillapyrone and nortetillapyrone were evaluated for their growth inhibitory effect against seven yeasts and eight filamentous fungi. Only nortetillapyrone showed antifungal activity, with a preponderance on the dermatophytic filamentous fungi.
Journal: Marine Drugs
ISSN 1660-3397
Volume: 5;
Issue: 2;
Start page: 40;
Date: 2007;
Original page
Keywords: Haliclona baeri | Haliclona cymaeformis | tetillapyrone | nortetillapyrone | antifungal activity | dermatophytes
ABSTRACT
A new compound maleimide-5-oxime was isolated, together with 3,4- dihydroxybenzoic acid, tetillapyrone, from the ethyl acetate extract of the marine sponge Haliclona baeri while tetillapyrone, nortetillapyrone, p-hydroxybenzaldehyde and phenylacetic acid were isolated from the ethyl acetate extract of Haliclona cymaeformis, collected from the Gulf of Thailand. The structures of tetillapyrone and nortetillapyrone were re-examined using HMBC correlations. Maleimide-5-oxime, tetillapyrone and nortetillapyrone were found to be inactive against three human tumor cell lines (the estrogen-dependent ER(+) MCF-7, the estrogen-independent ER(-) MDA-MB-231 and NCI-H460. Maleimide-5-oxime, p-hydroxybenzaldehyde, phenylacetic acid, tetillapyrone and nortetillapyrone were evaluated for their growth inhibitory effect against seven yeasts and eight filamentous fungi. Only nortetillapyrone showed antifungal activity, with a preponderance on the dermatophytic filamentous fungi.
