Methods of analyzing cucurbitacins in cucumbers
i. I.S. Movsumov, A. M. Aliev, E. S. Kondratenko, and N. K. Abubakirov, Khim. Prlrodn. Soedin., 519 (1975). 2. Yu. Ovodov, E. V. Evtushenko, V. E. Vaskovsky, R. G. Ovodova, and T. F. Soloveva, J. Chromatogr., 26, iii (1967). 3. M.M. Mukhamedziev and P. K. Allmbaev, Farmatsiya, ~, 39 (1970). 4. M.M. Mukhamedziev, A. K. Alimbaev, T. T. Gorovits, and N. K. Abubakirov, Khlm. Prirodn. Soedln., 153 (1971). 5. B.G. Bukharov, V. V. Karlln, and V. A. Talan, Khlm. Prirodn. Soedin., 17 (1967).
Terpenoids—IV : The nuclear magnetic resonance study of methyl group signals in the cucurbitanes
Abstract The methyl group region in the NMR spectra of several cucurbitane derivatives have been studied.
The constituents of Ecballium elaterium L.—XXII
Abstract Structural transformations were investigated involving a shift of the double bond from ring B to A induced during the acid treatment of A(2)-nor-hexanor-elactericin A (III). Two isomers were obtained (IV and V) the structures of which were determined by chemical and spectroscopic studies.