title: Studies on antitumor cyclic hexapeptides RA obtained from rubiae radix, rubiaceae. VI. Minor antitumor constituents.
mesh_terms: D000818:Animals; D000972:Antineoplastic Agents, Phytogenic / Q000138:chemical synthesis*; D055598:Chemical Phenomena; D002621:Chemistry; D009682:Magnetic Resonance Spectroscopy; D008297:Male; D051379:Mice; D010456:Peptides, Cyclic / Q000138:chemical synthesis* / Q000494:pharmacology; D010946:Plants, Medicinal / Q000032:analysis*
chemical_list: D000972:Antineoplastic Agents, Phytogenic; D010456:Peptides, Cyclic