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Patent ¹ 2176276 B1 (EP). C07H17/08, A61K31/7034, A61P31/04. Derivatives of nystatin and their use as antifungal agents // Zotchev S.B., Borgos S.E.F., Brautaset T., Ellingsen T.E., Olsufyeva E.N., Preobrazhenskaya M.N., Sletta H.; Assignee: Biosergen, AS; - Application Number: EP20080775793, 30.06.2008.; - Publication Date: 30.07.2014.