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(17S,18S)-5,17-Dihydroxy-28-oxa-14,19-diaza-4-azoniaoctacyclo[12.11.2.115,18.02,6.07,27.08,13.019,26.020,25]octacosa-1,4,6,8,10,12,20,22,24,26-decaen-3-one


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