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2-[(6-Deoxy-3-O-ethyl-2,4-di-O-methyl-α-L-mannopyranosyl)oxy]-13-[[(2R,5S,6R)-5-(dimethylamino)tetrahydro-6-methyl-2H-pyran-2-yl]oxy]-9-ethyl-2,3,3a,4,5,5a,5b,6,9,10,11,12,13,14,16a,16b-hexadecahydro-14-dimethyl-(2R,3aR,5aR,5bS,9S,13S,14R,16aS,16bR)-1H-as-indaceno[3,2-d]oxacyclo-dodecin-7,15-dione