title: Cytotoxic pyridone alkaloids from the leaves of Piper aborescens.
abstract: Bioactivity-guided fractionation of a CHCl3 extract of the leaves of Piper aborescens afforded a new cytotoxic pyridone alkaloid, N-(3-methoxy-4,5-methylenedioxydihydrocinnamoyl)-delta 3-pyridin-2-one [1], as well as three known cytotoxic pyridone alkaloids, N-(3-methoxy-4,5-methylenedioxycinnamoyl)-delta 3-pyridin-2-one [2], piplartine [3], and piplartine dimer A [4].
authors.affiliation: School of Pharmacy, Kaohsiung Medical College, Taiwan, Republic of China.
authors.forename: C Y
authors.initials: CY
authors.lastname: Duh
authors.forename: Y C
authors.initials: YC
authors.lastname: Wu
authors.forename: S K
authors.initials: SK
authors.lastname: Wang
mesh_terms: D000470:Alkaloids / Q000302:isolation & purification / Q000494:pharmacology*; D000818:Animals; D000972:Antineoplastic Agents, Phytogenic / Q000302:isolation & purification; D004354:Drug Screening Assays, Antitumor; D006801:Humans; D007941:Leukemia P388 / Q000188:drug therapy; D009682:Magnetic Resonance Spectroscopy; D051379:Mice; D015394:Molecular Structure; D011728:Pyridones / Q000302:isolation & purification / Q000494:pharmacology*; D014407:Tumor Cells, Cultured
chemical_list: D000470:Alkaloids; D000972:Antineoplastic Agents, Phytogenic; D011728:Pyridones