STEROID LACTONES
نویسندگان
چکیده
منابع مشابه
Lactones 5 * . Synthesis of Some Terpenoid Lactones from , - Epoxy Esters
Synthesis of bicyclic [1] and tricyclic [2] terpenoid lactones and the preliminary results of biological tests for their feeding deterrent activity [3] previously were presented. The tests, which were carried out on three storage pest insects: the grain weevil (Sitophilus granarius L.), the confused flour beetle (Tribolium confusum Duv.) and the khapra beetle (Trogoderma granarium Ev.), showed ...
متن کاملSesquiterpene Lactones from Achillea
The species of genus Achillea, particularly those belonging to the Achillea millefolium group have received a lot of attention so far, due to their use in traditional medicine. Among the numerous chemical compounds isolated from the A. millefolium species, the sesquiterpene lactones are usually one of the major constituents (Seaman, 1982). Continuing our chemotaxonomic examination of Bulgarian ...
متن کاملSesquiterpene lactones from Chrysolaena platensis.
A.L. Cabrera's treatment of Argentine Vernonias (Cabrera, 1944) included four members of his Section Lepidaploa, subsection Flexuosae, three of which were listed as occurring in Entre Rios Province (Cabrera, 1974). Two of these, V. cognata Less. and V. platensis (Spreng.) Less., were said to be closely related, di!ering from each other only in the number of #owers in the capitulum, diameter of ...
متن کاملLactones with a fragrance properties
The various types of lactones have different durability and properties. The most stable among γ-lactones and δ-lactones, which are those containing respectively five or six carbon in the cyclic ring. The lowest durability can be attributed to α-lactones, due to the strong tension torsion and angle of bonds between the atoms forming the ring. Similar tension, to a lesser extent also observed in ...
متن کاملSesquiterpene lactones from Elephantopus scaber
The ethanolic and acetone extracts of the whole plant of Elephantopus scaber were found to contain ethyl hexadecanoate, ethyl-9,12-octadecadienoate, ethyl-(Z)9-octadecenoate, ethyl octadecanoate, lupeol, stigmasterol, stigmasterol glucoside, deoxyelephantopin (1) and two new germacranolide sesquiterpene lactones named 17,19-dihydrodeoxyelephantopin (2) and iso-17,19-dihydrodeoxyelephantopin (3)...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 1947
ISSN: 0021-9258
DOI: 10.1016/s0021-9258(17)41107-0