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Milbemycin b, 5-O-demethyl-28-deoxy-5-O-[(1,1-dimethylethyl)dimethylsi lyl]-6,28-epoxy-13-hydroxy-25-(1-methylpropyl)-, [6R,13S,25R(S)]- |
Milbemycin b, 5-O-demethyl-28-deoxy-5-O-[(1,1-dimethylethyl)dimethylsi lyl]-6,28-epoxy-13-hydroxy-25-(1-methylpropyl)-, [6R,13S,25R(S)]- |
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