Synonyms: | MilbemycinB, 5-O-demethyl-28-deoxy-5-O-[(1,1-dimethylethyl)dimethylsilyl]-6,28-epoxy-13-hydroxy-25-(1-methylpropyl)-,[6R,13S,25R(S)]-;Spiro[11,15-methano-2H,13H,17H-furo[4,3,2-pq][2,6]benzodioxacyclooctadecin-13,2'-[2H]pyran],milbemycin B deriv.; 5-O-(tert-Butyldimethylsilyl)dihydroavermectin B1a aglycon |