[2R(2E,4S,5S),4S,6S,8R(S),9S]-2-[4-(tert-butyldiphenylsilyloxy)-3,5-dimethylhepta-2,6-dienyl]-9-methyl-8-(1-methypropyl)-1,7-dioxaspiro[5.5]undec-10-en-4-ol

(3E<2E,4S,5S,6E,8<2R,4S,6S,8R(S),9S>>,3aS,4S,6S,7R,7aR)-octahydro-4-(hydroxymethyl)-3-<5-hydroxy-8-<4-hydroxy-9-methyl-8-(1-methylpropyl)-1,7-dioxaspiro<5.5>undec-10-en-2-yl>-4,6-dimethylocta-2,6-dienylidene>-6-methylbenzofuran-3a,7-diol

(3E<2E,4S,5S,6E,8<2R,4S,6S,8R(S),9S>>,3aS,4S,6S,7R,7aR)-octahydro-3a,7-dihydroxy-3-<5-hydroxy-8-<4-hydroxy-9-methyl-8-(1-methylpropyl)-1,7-dioxaspiro<5.5>undec-10-en-2-yl>-4,6-dimethylocta-2,6-dienylidene>-6-methylbenzofuran-4-carbaldehyde

(4S)-3,4-dihydroavermectin B1a aglycone

(4S)-5-dehydroxy-3,4-dihydro-5-oxoavermectin B1a aglycone