LIPOPHILIC CONSTITUENTS OF PEDICULARIS STRIATA PALLAS И PEDICULARIS FLAVA PALLAS

Abstract

Some species of Pedicularis have been widely applied in traditional Chinese medicine. Some plants of Pedicularis genus have a great potential for the discovery of new drugs because most of them have not been studied in detail. Extracts from the plants of genus Pedicularis have been found to possess antitumor, hepatoprotective, anti-oxidative, antihaemolysis, antibacterial activity, fatigue relief of skeletal muscles, nootropic effect and other activitiesin vivo and in vitro. A wide range of chemical components including iridoid glycosides, phenylpropanoid glycosides, lignans glycosides, flavonoids, alkaloids and other polar compounds have been isolated and identified from the genus Pedicularis. Information about lipophilic constituents is too poor. The results of our investigations of aliphatic and triterpenoic substances by GC-MS are identification of 25 neutral and 18 acid compounds including sterols, triterpenoids and unusual branched hydrocarbons. Main components of neutral fraction are β-sitosterol and phytol. Triterpenol fraction is found to content cycloartenol, 24-methylene-cycloartanol, obtusifoliol, stigma-7-en-3-ol and citrostadienol. Cycloartenol prevails in both types of row material. The main components of acids are palmitic, linoleic and linolnic acids. Pedicularis striata contains significant amount of melissic and montanic acids. All compounds were found for the first time in these row materials. Identified compounds could be potential chemotaxonomic markers for the Pedicularis species.