N-((5S,10R)-7,9-dibromo-10-hydroxy-8-methoxy-1-oxa-2-azaspiro(4.5)deca-2,6,8-triene-3-carboxy)-4-aminobutanoic acid
n-((5s,10r)-7,9-dibromo-10-hydroxy-8-methoxy-1-oxa-2-azaspiro(4.5)deca-2,6,8-triene-3-carboxy)-4-aminobutanoic acid