(2r,3s,4r,5s,8r,9s,10s,11r)-5-ethyl-11-({4-[ethyl(methyl)amino]-3-hydroxy-6-methyltetrahydro-2h-pyran-2-yl}oxy)-3-hydroxy-9-[(4-methoxy-4,6-dimethyltetrahydro-2h-pyran-2-yl)oxy]-2,4,8,10,12,14-hexamethyl-6,15-dioxabicyclo[10.2.1]pentadec-1(14)-en-7-one(no |
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