title: Abietane diterpenoids from Clerodendrum bungei.
abstract: Five new naturally occurring abietane diterpenoids (1-5) along with three known diterpenoids (6-8) were isolated from an acetone-soluble extract of the roots of Clerodendrum bungei. The structures of the new compounds were elucidated on the basis of spectroscopic analysis and chemical methods. In addition, all compounds were evaluated for cytotoxic activity against the cultured B16 (murine melanoma), HGC-27 (human gastric), and HEK-293 (human epithelial kidney) cell lines. Uncinatone (7) exhibited moderate cytotoxicity, inhibited cell proliferation, and induced cell-cycle G(2)/M phase arrest.
authors.affiliation: State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Zhangjiang Hi-Tech Park, Shanghai, PR China.
authors.forename: Shanshan
authors.initials: S
authors.lastname: Liu
authors.forename: Huilin
authors.initials: H
authors.lastname: Zhu
authors.forename: Shuwei
authors.initials: S
authors.lastname: Zhang
authors.forename: Xiaohui
authors.initials: X
authors.lastname: Zhang
authors.forename: Qiang
authors.initials: Q
authors.lastname: Yu
authors.forename: Lijiang
authors.initials: L
authors.lastname: Xuan
mesh_terms: D045784:Abietanes / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology*; D000972:Antineoplastic Agents, Phytogenic / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology*; D032409:Clerodendrum / Q000737:chemistry*; D004354:Drug Screening Assays, Antitumor; D004365:Drugs, Chinese Herbal / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology*; D006801:Humans; D015394:Molecular Structure; D010946:Plants, Medicinal / Q000737:chemistry*
chemical_list: D045784:Abietanes; D000972:Antineoplastic Agents, Phytogenic; D004365:Drugs, Chinese Herbal; C530229:uncinatone