Milbemycin A4 Oxime

Chemical Name: (1′R,2R,4′S,5S,6R,8′R,10′E,13′R,14′E,16′E,20′R,21′Z,24′S)-6-ethyl-24′-hydroxy-21′-(hydroxyimino)-5,11′,13′,22′-tetramethyl 3,4,5,6-tetrahydrospiro[pyran-2,6′-[3,7,19]trioxatetracyclo[15.6.1.14,8.020,24]pentacosa [10,14,16,22]tetraen]-2′-one

Synonym: Nebramine

Smile: O=C(O[C@]1([H])C[C@]2(O[C@](C1)([H])C/C=C(C)/C[C@@H](C)C=C/C=C3CO[C@@]/4([H])[C@@]5\3O)CC[C@H](C)C(CC)O2)[C@]5([H])C=C(C)C4=N\O