Two flavones, ladanein and 6-hydroxy-5,7,4'-trimethoxyflavone and one labdane-type diterpene, ent-13-epi-manoyloxide, were isolated from an ethyl acetate-methanol extract of the aerial parts of Salvia sharifii. The compounds were purified using several chromatographic methods. Structural elucidation of the compounds was performed using their (1)H and (13)C-NMR data, EI mass and UV spectral data...

The methanolic extract of the aerial parts of Salvia leriaefolia (labiatae) afforded 5-hydroxy-4´, 6, 7-trimethoxy flavone (Salvigenin) and (5,4´-dihydroxy-7-methoxy flavone (Genkwanin). The structures of the isolated compounds were elucidated using 1 and 2 D-NMR, IR, UV and MS.

BACKGROUND A number of medicinal plants have been used to treat various immunological diseases. Nitric oxide (NO) has an important regulatory role in the various types of inflammatory processes. OBJECTIVE To investigate the NO modulatory activity of the extracts of several medicinal plants native to Iran including Dracocephalum kotschyi, Linum persicum, Dionysia termeana, Salvia mirzayanii, F...

The oxidative cyclisation reactions of 2’-hydroxychalcones to corresponding aurones and flavones are discussed. While Hg2+, Cu2+ and Tl3+-mediated oxidative cyclisation of 2’-hydroxychalcones selectively give aurones, I2, Se4+, In3+, Cu+ and Fe3+-mediated reactions preferable give flavones. The general mechanisms of these oxidative cyclisation reactions are proposed.

the methanolic extract of the aerial parts of salvia leriaefolia (labiatae) afforded 5-hydroxy-4´, 6, 7-trimethoxy flavone (salvigenin) and (5,4´-dihydroxy-7-methoxy flavone (genkwanin). the structures of the isolated compounds were elucidated using 1 and 2 d-nmr, ir, uv and ms.

background adenylate cyclase toxin (cyaa) is an important virulence factor of bordetella pertussis, the causative agent of whooping cough, and a potential component of acellular pertussis vaccine. objectives in the present study the impact of invasive cyaa on oxidative activities of phagocytes was compared with the other form of this molecule to investigate the activity of different parts of mo...

Background: Salvia mirzayanii, a native plant to Iran, is shown to have immunomodulatory effects on lymphocyte proliferation. Objective: To identify the bioactive immunomodulatory compound(s) present in S. mirzayanii. Methods: The crude extract was fractionated to five fractions in two steps using different solvents. The fractions were subjected to bioassay-guided fractionation. All the fractio...