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  • 3-((2S,3S)-3-{(2S,5S,7S)-7-[(S)-2-(tert-Butyl-diphenyl-silanyloxy)-1-methyl-ethyl]-1,6-dioxa-spiro[4.5]dec-2-yl}-2-methyl-oxiranyl)-2-hydroxy-propionic acid methyl ester

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