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Spiro[[7-methoxy-5-methyl-1,2-dihydro-naphthalene]-3,1'-[5-hydroxy-9-[2-methylamino-2,6-dideoxygalactopyranosyl-oxy]-5-(2-oxo-[1,3]dioxolan-4-YL)-3A,5,9,9A-tetrahydro-3H-1-oxa-cyclopenta[A]-S-indacen-2-one]]


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