Abstract: | LSIMS mass spectra of pennogenin glycosides have been studied; the most characteristic ions are (M+H−H2O)+ (with glycerol as the liquid matrix) and (M+Na)+ (with glycerol +NaCl as matrix). In both cases the peaks of ions formed as the result of the successive elimination of the
carbohydrate units, the breakdown of the bonds of the terminal pyranoses, the cleavage of the bonds of the rings D and E,
and the peaks of the ions Agl+ and (Agl−H2O)+ were observed.
Institute of Chemistry of Plant Substances, Academy of Sciences of the Uzbek SSR, Tashkent. All-Union Scientific-Research
Institute for Agricultural Biotechnology, All-Union Academy of Agricultural Sciences, Moscow. Pacific Institute of Bioorganic
Chemistry, Far Eastern Branch, Academy of Sciences of the USSR, Vladivostok. Translated from Khimiya Prirodnykh Soedinenii,
No. 4, pp. 523–525, July–August, 1991. |