Synonyms: Isofistularin-3;AC1L4L3L;(5S,10R)-7,9-dibromo-N-[3-[2,6-dibromo-4-[2-[[(5S,10R)-7,9-dibromo-10-hydroxy-8-methoxy-4-oxa-3-azaspiro[4.5]deca-2,6,8-triene-2-carbonyl]amino]-1-hydroxyethyl]phenoxy]-2-hydroxypropyl]-10-hydroxy-8-methoxy-4-oxa-3-azaspiro[4.5]deca-2,6,8-triene-2-carboxamide;1-Oxa-2-azaspiro(4.5)deca-2,6,8-triene-3-carboxamide, 7,9-dibromo-N-(3-(2,6-dibromo-4-(2-((((5S,10R)-7,9-dibromo-10-hydroxy-8-methoxy-1-oxa-2-azaspiro(4.5)deca-2,6,8-trien-3-yl)carbonyl)amino)-1-hydroxyethyl)phenoxy)-2-hydroxypropyl)-10-hydroxy-8-methoxy-, (5S,10R)-;87099-50-1