Ricerc@Sapienza

In this work the HPLC and NMR analysis of the phenyl-ethanoid glycosides (PhGs) pattern of a cultivated exemplar of Verbascum thapsus L. (Scrophulariaceae) from the Etnean area (Sicily, Italy) was performed in order to verify their possible presence. Wild V. thapsus is well-known in ethnopharmacology due to the several beneficial effects that it is able to exert and which are primarily due to these compounds. So, it’s extremely important that also cultivated exemplars of this species biosynthesize them in order to maintain their pharmacological properties.

In this work, the half-matured female cones of the rare species, Wollemia nobilis, were studied for their phytochemical

This paper reports on the first phytochemical analysis ever performed on Jasminum tortuosum Willd. This analysis, mainly carried out by means of column chromatography separation, NMR spectroscopy and mass spectrometry, led to the isolation and the identification of four compounds, namely the lignans ginkgool (1) and olivil-4'-O-beta-glucopyranoside (2) and the secoiridoids oleoside dimethyl ester (3) and oleoside 11-methyl ester (4).

The study of the main components of the alcoholic extract obtained from Chloraea chrysantha POEPP. led to
the isolation of two new dihydrostilbene derivatives together with the known gavilein (3). The new compounds
have been assigned as 3-methoxy-5-{2-[3-methoxy-2-(3-methylbut-2-en-1-yl)phenyl]ethyl}phenol (1) and 1-[2-
(3,5-dimethoxyphenyl)ethyl]-3-methoxy-2-(3-methylbut-2-en-1-yl)benzene (2). The presence of compounds 1–3
is perfectly in accordance with the current botanical classification of the genus.

In this work, the first phytochemical analysis ever performed on the fruits of Styrax officinalis L. (Styracaceae) collected from a population vegetating in the Mounts Lucretili National Park (Italy) was reported.

In this review, the species from the genus Eremostachys Bunge are described and explored from different standpoints. In particular, the main attention is focused on phytochemistry also with reference to the biogenesis of the most important class of chemotaxonomic marker, the iridoids, and their co-occurrence with volatile terpene components of essential oils which own the same biogenetic precursors. The ethnopharmacological implications of the plants belonging to this genus are also reported in detail.

In this work, the first phytochemical study on the total polar fraction of Linaria purpurea (L.) Mill. was performed by means of column chromatography and NMR and MS analysis. Seven compounds were identified i.e. pheophytin a (1), methyl-pheophorbide a (2), linaride (3), antirrhide (4), antirrhinoside (5), linarioside (6) and shikimic acid (7), belonging to three different classes of natural compounds. Compound (2) represents a new compound for the family as well as compound (1) is for the genus and compounds (3, 6, 7) are for the species.

Lamiaceae (or Labiatae) is a family of plants included in the Angiosperms group comprising 12 subfamilies, 16 tribes, 9 subtribes, 236 genera, and more than 7000 species. It represents what is probably one of the best-known and most-studied families from the phytochemical and ethnopharmacological standpoints, because it contains several compounds with great relevance and many important biological properties. In the context of phytochemistry, Lamiaceae can be unofficially divided into two major groups.

The phytochemical study of the alcoholic extract obtained from Bipinnula fimbriata (Poepp.) I.M.Johnst., allowed to isolate three metabolites, corresponding to the butanolide kinsenoside (1) and to two dihydrostilbene derivatives, which have been assigned as 3-methoxy-5-{2-[3-methoxy-2-(3-methylbut-2-en-1-yl)-phenyl]ethyl} phenol (2) and 4-[2-(3-hydroxy-5-methoxyphenyl)ethyl]-2-(3-methylbut-2-en-1-yl)phenol, also named cannabistilbene I (3).