title: Bioactive diterpenoids, a new jatrophane and two ent-abietanes, and other constituents from Euphorbia pubescens.
abstract: A new jatrophane diterpene, pubescenol (1), known ent-abietane lactones, helioscopinolide A (2) and B (3), and taraxerone, 24-methylenecycloartanol, and vanillin have been isolated from Euphorbia pubescens. Diterpenes 1-3 and previously described pubescene D (4) were shown to be moderate inhibitors of the growth of MCF-7, NCI-H460, and SF-268 human tumor cell lines, whereas compounds 2 and 3 also exhibited significant antibacterial activity against Staphylococcus aureus.
authors.affiliation: CECF, Centro de Estudos de Ciências Farmacêuticas, Faculdade de Farmácia da Universidade de Lisboa, Avenida das Forças Armadas, 1600-083 Lisboa, Portugal.
authors.forename: Cláudia
authors.initials: C
authors.lastname: Valente
authors.forename: Madalena
authors.initials: M
authors.lastname: Pedro
authors.forename: Aida
authors.initials: A
authors.lastname: Duarte
authors.forename: Maria São José
authors.initials: MS
authors.lastname: Nascimento
authors.forename: Pedro M
authors.initials: PM
authors.lastname: Abreu
authors.forename: Maria-José U
authors.initials: MJ
authors.lastname: Ferreira
mesh_terms: D045784:Abietanes / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D000900:Anti-Bacterial Agents / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D000972:Antineoplastic Agents, Phytogenic / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D004224:Diterpenes / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D004354:Drug Screening Assays, Antitumor; D028481:Euphorbia / Q000737:chemistry*; D006801:Humans; D008826:Microbial Sensitivity Tests; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D010946:Plants, Medicinal / Q000737:chemistry*; D011174:Portugal; D013211:Staphylococcus aureus / Q000187:drug effects; D013237:Stereoisomerism; D014407:Tumor Cells, Cultured
chemical_list: D045784:Abietanes; D000900:Anti-Bacterial Agents; D000972:Antineoplastic Agents, Phytogenic; D004224:Diterpenes; C487257:helioscopinolide A; C487258:helioscopinolide B; C487256:pubescenol