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 Isofistularin-3