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(4S,9S)-4-[(4R)-2-Oxo-1,3-dioxolane-4beta-yl]-10beta-(2-deoxy-2-methylamino-alpha-D-fucopyranosyloxy)-11alpha-(tert-butyldimethylsiloxy)-4alpha,5alpha-epoxybicyclo[7.3.0]dodecane-1(12)-ene-2,6-diyne-8alpha-ol


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