title: Two antitumour bicyclic hexapeptides from Rubia cordifolia.
abstract: Two novel antitumour bicyclic hexapeptides, named RA-XV and -XVI, were isolated from Rubia cordifolia and their structures were characterized by spectroscopic and chemical means.
authors.affiliation: Department of Pharmacognosy, Tokyo College of Pharmacy, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Takeya
authors.forename: T
authors.initials: T
authors.lastname: Yamamiya
authors.forename: H
authors.initials: H
authors.lastname: Morita
authors.forename: H
authors.initials: H
authors.lastname: Itokawa
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D000972:Antineoplastic Agents, Phytogenic / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology*; D004354:Drug Screening Assays, Antitumor; D007941:Leukemia P388 / Q000188:drug therapy; D009682:Magnetic Resonance Spectroscopy; D008969:Molecular Sequence Data; D015394:Molecular Structure; D009842:Oligopeptides / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology; D010456:Peptides, Cyclic / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology*; D010940:Plant Proteins / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology*; D014407:Tumor Cells, Cultured
chemical_list: D000972:Antineoplastic Agents, Phytogenic; D009842:Oligopeptides; D010456:Peptides, Cyclic; D010940:Plant Proteins