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(1R,4S,4aS,4bS,5R,8S,8aS,8bS)-1,2,3,4,5,6,7,8-octachloro-9,9,10,10-tetramethoxy-1,4,4a,4b,5,8,8a,8b-octahydro-1,4:5,8-dimethanobiphenylene
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(1R,4S,4aS,4bR,5S,8R,8aR,8bS)-1,2,3,4,5,6,7,8,9,9-decachloro-10,10-dimethoxy-1,4,4a,4b,5,8,8a,8b-octahydro-1,4:5,8-dimethanobiphenylene
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(4aR,4bS,5R,6R,9S,10S,10aR,10bS)-1,2,3,4-tetrachloro-4a,4b,5,6,9,10,10a,10b-octahydro-5,10:6,9-dimethanobenzo[3,4]cyclobuta[1,2][8]annulene
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