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Patent N 8415312 (US). 61K31/70, C07H17/08. Compound which is a nystatin derivative // 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: 12/667434, 30.06.2008.; - Publication Date: 09.04.2013.