title: Scalarane-type bishomosester terpenes from the sponge Phyllospongia foliascens.
abstract: Five new 20,24-bishomoscalarane sesterterpenes, phyllactones A [1], B [2], C [3], D [4], and E [5], are reported from the sponge Phyllospongia foliascens collected in the waters of the Nansha Islands in the South China Sea. Structural elucidation of these compounds is based on spectral data and chemical conversions. Phyllactones A and B show moderate cytotoxicity against KB cells (IC50 20 micrograms/ml).
authors: Department of Chemistry, Zhongshan University, Guangzhou, People's Republic of China.
authors: X
authors: X
authors: Fu
authors: L M
authors: LM
authors: Zeng
authors: J Y
authors: JY
authors: Su
authors: M
authors: M
authors: Pais
authors: P
authors: P
authors: Potier
mesh_terms: D000107:Acetylation; D000818:Animals; D000970:Antineoplastic Agents / Q000302:isolation & purification* / Q000494:pharmacology; D004354:Drug Screening Assays, Antitumor; D006801:Humans; D007624:KB Cells; D009682:Magnetic Resonance Spectroscopy; D011161:Porifera / Q000737:chemistry*; D013729:Terpenes / Q000302:isolation & purification* / Q000494:pharmacology
chemical_list: D000970:Antineoplastic Agents; D013729:Terpenes; C079189:phyllactone A