title: Bioactive compounds from Taiwania cryptomerioides.
abstract: Two new sesquiterpenes, 10 alpha-hydroxyamorphan-4-en-3-one (1) and 4 alpha-methylcadinane-4 alpha-methyl-1 alpha,2 alpha,10 alpha-triol (2), together with four known compounds, sesquiterpenes 10 alpha-hydroxycadinan-4-en-3-one (3) and alpha-cadinol (4), diterpene ferruginol and lignan helioxanthin, were isolated from the whole plant of Taiwania cryptomerioides under bioassay-guided fractionations. The structures of 1 and 2 were elucidated mainly by the NMR spectroscopic analyses. Bioactivities of the isolated compounds against brine shrimp, yellow fever mosquito larvae, and human tumor cells are reported; compound 4 was the most bioactive, showing selectivity for the human colon tumor cell line (HT-29).
authors.affiliation: Department of Medicinal Chemistry and Molecular Pharmacology, School of Pharmacy and Pharmacal Sciences, Purdue University, West Lafayette, Indiana 47907, USA.
authors.forename: K
authors.initials: K
authors.lastname: He
authors.forename: L
authors.initials: L
authors.lastname: Zeng
authors.forename: G
authors.initials: G
authors.lastname: Shi
authors.forename: G X
authors.initials: GX
authors.lastname: Zhao
authors.forename: J F
authors.initials: JF
authors.lastname: Kozlowski
authors.forename: J L
authors.initials: JL
authors.lastname: McLaughlin
mesh_terms: D000330:Aedes; D000818:Animals; D000972:Antineoplastic Agents, Phytogenic / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D001156:Artemia; D004354:Drug Screening Assays, Antitumor; D019073:HT29 Cells; D006801:Humans; D007306:Insecticides / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D009682:Magnetic Resonance Spectroscopy; D008968:Molecular Conformation; D010936:Plant Extracts / Q000494:pharmacology; D010946:Plants, Medicinal / Q000737:chemistry*; D014407:Tumor Cells, Cultured
chemical_list: D000972:Antineoplastic Agents, Phytogenic; D007306:Insecticides; D010936:Plant Extracts