| Literature DB >> 14640526 |
Yujin Park1, Yonghong Liu, Jongki Hong, Chong-O Lee, Heeyeong Cho, Dong-Kyoo Kim, Kwang Sik Im, Jee H Jung.
Abstract
Three new bromotyrosine derivatives (4-6) were isolated from an association of two sponges, Jaspis wondoensis and Poecillastra wondoensis, along with the previously described (E,E)-psammaplin A (1), (E,Z)-psammaplin A (2), psammaplin D (3), bisaprasin (7), and (3-bromo-4-hydroxyphenyl)acetonitrile (8). The structures of the new compounds were established on the basis of NMR and MS spectroscopic analysis. The compounds 1, 3, and 5-7 displayed significant cytotoxicity against human lung (A549), ovarian (SK-OV-3), skin (SK-MEL-2), CNS (XF498), and colon (HCT15) cancer cell lines. Compounds 3-7 were further evaluated for antibacterial activity against methicillin- or ofloxacin-resistant Staphylococcus strains. Compound 4 exhibited more potent antibacterial activity than meropenem against several strains.Entities:
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Year: 2003 PMID: 14640526 DOI: 10.1021/np030162j
Source DB: PubMed Journal: J Nat Prod ISSN: 0163-3864 Impact factor: 4.050