S,S'-((2R,2'R,3S,3'S,4S,4'S,6S,6'S)-((((2R,2'R,3S,3'S,4S,4'S,5R,5'R)-(((2S,2'S,5Z,5'Z,9R,9'R,13E,13'E)-(trisulfanediylbis(ethan-2-yl-1-ylidene))bis(9-hydroxy-12-((methoxycarbonyl)amino)-11-oxobicyclo[7.3.1]trideca-1(12),5-dien-3,7-diyn-2-yl-13-ylidene))bis(oxy))bis(5-(((2S,4S,5S)-5-(ethylamino)-4-methoxytetrahydro-2H-pyran-2-yl)oxy)-4-hydroxy-2-methyltetrahydro-2H-pyran-6,3-diyl))bis(azanediyl))bis(oxy))bis(4-hydroxy-2-methyltetrahydro-2H-pyran-6,3-diyl)) bis(4-(((2S,3R,4R,5S,6S)-3,5-dihydroxy-4

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