title: [The structures of four minor diterpenequinones przewaquinones C, D, E and F from the root of Salvia przewalskii Maxim var mandarinorum (Diels) Stib].
mesh_terms: D055598:Chemical Phenomena; D002621:Chemistry; D004224:Diterpenes; D004338:Drug Combinations; D004365:Drugs, Chinese Herbal; D010618:Phenanthrolines / Q000032:analysis*; D010936:Plant Extracts; D010946:Plants, Medicinal / Q000737:chemistry*; D027561:Salvia miltiorrhiza
chemical_list: D004224:Diterpenes; D004338:Drug Combinations; D004365:Drugs, Chinese Herbal; D010618:Phenanthrolines; D010936:Plant Extracts; C028972:dan-shen root extract; C043166:przewaquinone C; C043165:przewaquinone D; C043164:przewaquinone F