Milbemycin oxime是抗寄生虫化合物。

(1'R,2R,4'S,5S,6R,8'R,10'E,13'R,14'E,16'E,20'R,21'Z,24'S)-24'-Hydroxy-21'-(hydroxyimino)-5,6,11',13',22'-pentamethyl-3,4,5,6-tetrahydro-2'H-spiro[pyran-2,6'-[3,7,19]trioxatetracyclo[15.6.1.1.0]pentacosa[10,14,16,22]tetraen]-2'-one - (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-tetrahydro-2'H-spiro[pyr an-2,6'-[3,7,19]trioxatetracyclo[15.6.1.1~4,