title: Norditerpenoids and diterpenoids from Salvia multicaulis with antituberculous activity.
abstract: From the roots of Salvia multicaulis, four new aromatic norditerpenoids, multicaulin (1), 12-demethylmulticauline (2), multiorthoquinone (3), and 12-demetylmultiorthoquinone (4), two new abietane diterpenoids, 12-methyl-5-dethydrohorminone (5) and 12-methyl-5-dehydroacetylhorminone (6), as well as a new pimarane diterpenoid, salvipimarone (7), were isolated. Also obtained in this investigation were the known compounds alpha-amyrin, hinokione, horminone, lupeol, manool, 1-oxoferruginol, 18-oxoferruginol, pisiferal, and sempervirol. The structures of compounds 1-7 were established by 1D and 2D NMR techniques and by chemical methods. The antituberculous activity of 1-7 was tested against Mycobacterium tuberculosis strain H37Rv, and all compounds were found to be significantly active, with 2 and 4-6 being the most potent substances. Six of these novel compounds were evaluated against a number of additional bacterial cultures.
authors.affiliation: Faculty of Pharmacy, University of Istanbul, Turkey. ulubelen@mam.gov.tr
authors.forename: A
authors.initials: A
authors.lastname: Ulubelen
authors.forename: G
authors.initials: G
authors.lastname: Topcu
authors.forename: C B
authors.initials: CB
authors.lastname: Johansson
mesh_terms: D000995:Antitubercular Agents / Q000302:isolation & purification* / Q000494:pharmacology*; D002853:Chromatography, Liquid; D004224:Diterpenes / Q000302:isolation & purification* / Q000494:pharmacology*; D009682:Magnetic Resonance Spectroscopy; D008826:Microbial Sensitivity Tests; D009169:Mycobacterium tuberculosis / Q000187:drug effects; D010946:Plants, Medicinal / Q000737:chemistry*; D013055:Spectrophotometry, Infrared; D013056:Spectrophotometry, Ultraviolet; D014421:Turkey
chemical_list: D000995:Antitubercular Agents; D004224:Diterpenes