Ivermectin Impurity 1

Chemical Name: 5-O-demethyl-8a-methoxy-22,23-dihydroavermectin A1a

Smile: O[C@H]1[C@H](C)O[C@@H](O[C@H]2[C@H](C)O[C@@H](O[C@@](/C(C)=C/C[C@]3([H])C[C@@](O4)([H])C[C@@]5(O[C@@]([C@](C)([H])CC)([H])[C@@]([H])(C)CC5)O3)([H])[C@@]([H])(C)/C=C/C=C6C(OC)O[C@@]7([H])[C@]\6(O)[C@@](C4=O)([H])C=C(C)[C@@]7([H])O)C[C@@H]2OC)C[C@@H]1OC