Ricerc@Sapienza

In this work, a phytochemical analysis on the total aerial parts of Galeopsis ladanum subsp. angustifolia (Ehrh. ex Hoffm.) Gaudin collected in Abruzzo region (Central Italy) has been reported. Nine compounds were identified belonging to five different classes of natural compounds. Additional chemotaxonomic markers were recognized than our previous study, as well. Their presence is perfectly in accordance with the current botanical classification of the species and shows the possibility of a pronounced metabolic variability.

In this review, the relevance of the plant species belonging to the Pedicularis L. genus has been considered from different points of view. Particular emphasis was given to phytochemistry and ethnopharmacology, since several classes of natural compounds have been reported within this genus and many of its species are well known to be employed in the traditional medicines of many Asian countries. Some important conclusions on the chemotaxonomic and chemosystematic aspects of the genus have also been provided for the first time.

In this review article, the phytochemistry of the species belonging to the Araucariaceae family is explored. Among these, in particular, it is given a wide overview on the phytochemical profile of Wollemia genus, for the first time. In addition to this, the ethnopharmacology and the general biological activities associated to the Araucariaceae species are singularly described. Lastly, the chemotaxonomy at the genus and family levels is described and detailed.

In this paper, the phytochemical analysis on the inflorescences (flowers and bracts) of a sample of Tilia tomentosa collected from an isolated population in Central Italy, was reported for the first time. Thirteen compounds (oleanolic acid, maslinic acid, apigenin, luteolin, kaempferol, quercetin, kaempferol-3-O-glucoside, quercetin-3-O-glucoside, rutin, tiliroside, ellagic acid, shikimic acid and quinic acid), belonging to several different classes of natural products, were identified on the basis of spectroscopic and spectrometric analysis.

In this work, an interesting potential application of phytochemistry is reported. In particular, we employed the
Sporne diagrams to provide information about the evolution of some different Lamiaceae species in relation to
their content in secondary metabolites. In more details, fifteen species belonging to six different genera were
studied i.e. Ajuga L., Galeopsis L., Melittis L., Sideritis L., Stachys L. and Teucrium L. The selected secondary
metabolites were iridoids because of their wide occurrence and distribution within all the family, thus providing

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.

Lamiaceae is a family of plants included in the angiosperms group and comprising 12 subfamilies, 16 tribes, 9 sub-tribes, 236 genera and more than 7000 species. Plants belonging to this family are quite known all around the world for their traditional uses in both ethnobotany and cookery.

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.

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).