Eprinomectin B1a

Smile: CO[C@@H]1[C@H](NC(C)=O)[C@H](C)O[C@@H](O[C@@H]2[C@@H](OC)C[C@H](O[C@@H]([C@@H](C)/C=C\C=C3CO[C@@]([C@H](O)C(C)=C4)([H])[C@]/3(O)[C@]4([H])C5=O)/C(C)=C/C[C@]6([H])C[C@@](O5)([H])C[C@]7(C=C[C@H](C)[C@@]([H])([C@H](CC)C)O7)O6)O[C@H]2C)C1