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(1S,2S,3S,4S,7R,8S,15S,16R)-8,15-Dibromo-1,4,5,6,7,16,17,18-octachloro-19,19,20,20-tetramethoxyhexacyclo[14.2.1.14,7.02,15.03,8.09,14]icosa-5,9,11,13,17-pentaene


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