661453-98-1

1-Oxa-2-azaspiro[4.5]deca-2,6,8-triene,7,9-dibromo-3-[(1Z)-2-[3,5-dibromo-4-methoxy-2-(phenylmethoxy)phenyl]-1-[[(1,1-dimethylethyl)dimethylsilyl]oxy]ethenyl]-10-[[(1,1-dimethylethyl)dimethylsilyl]oxy]-8-methoxy-, (5R,10S)-rel-