Synonyms: (5s,8s,9r)-8-benzoyl-2-[(1s,2r,3s,4s)-3,4-dibromo-1,2-dihydroxyhexyl]-9-hydroxy-8-methoxy-3-methyl-1-oxa-7-azaspiro[4.4]non-2-ene-4,6-dione;12.13-Dibromopseurotin;AC1L4SMA;AC1Q23RT;KST-1A7134;AR-1A6551;(1R,2S,5S)-2-benzoyl-8-[(1S,2R,3S,4S)-3,4-dibromo-1,2-dihydroxyhexyl]-1-hydroxy-2-methoxy-7-methyl-9-oxa-3-azaspiro[4.4]non-7-ene-4,6-dione;1-Oxa-7-azaspiro(4.4)non-2-ene-4,6-dione, 8-benzoyl-2-(3,4-dibromo-1,2-dihydroxyhexyl)-9-hydroxy-8-methoxy-3-methyl-, (5S-(2(1R*,2S*,3R*,4R*),5alpha,8beta,9beta))-