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Use of mass-spectrometry with desorbtion by chemical ionization with ammonia and FAB for analyzing antibiotics belonging to the aureolic acid group (as examplified by variamycin)
B. V. Rosynov, Yu. V. Zhdanovich, G. B. Lokshin, L. I. Nasonova
M.M. Shemyakin Institute of Bioorganic Chemistry, Academy of Sciences of the USSR, Moscow; National Research Institute of Antibiotics, Moscow
Abstract: By means of the title methods molecular masses of variamycin A (I) and B (II) have been established, presence of a trisaccharicle and a disaccharide chains in molecules I and II is corroborated, and the order of monosaccharide residues in the chains is established.
Russian Journal of Bioorganic Chemistry 1991, 17 (3):417-420