C - Chemistry – Metallurgy – 07 – H
Patent
C - Chemistry, Metallurgy
07
H
260/210, 260/228
C07H 9/02 (2006.01) A01N 43/90 (2006.01) C07D 493/22 (2006.01) C07H 19/01 (2006.01)
Patent
CA 1261823
- 1 - 5-15178/+ 13.beta.-Milbemycin derivatives for controlling ecto- and endoparasites of plants and animals Abstract of the Disclosure The invention relates to parasiticidally and insecticidally highly active compounds of formula I (I) Image wherein R1 is hydrogen or a protecting group; R2 is methyl, ethyl, isopropyl or sec-butyl; and R is a radical R3 which is bound through oxygen or sulfur and is selected from the group consisting of C1-C10alkyl, C1-C10halo- alkyl, C1-C10hydroxyalkyl, C1-C10mercaptoalkyl, C2-C10alkoxy- alkyl, C3-C10alkoxyalkoxyalkyl, hydroxy- or mercapto-substituted C3-C10alkoxyalkoxyalkyl, C4-C15alkoxyalkoxyalkoxyalkyl, hydroxy- or mercapto-substituted C4-C15alkoxyalkoxyalkoxyalkyl; C2-C10- alkenyl, C2-C10haloalkenyl, C2-C10alkynyl, C2-C10haloalkynyl, phenyl which is unsubstituted or substituted by halogen, C1-C3- alkyl, C1-C3haloalkyl, C1-C3alkoxy, C1-C3haloalkoxy, cyano and/or nitro, snd benzyl which is unsubstituted or substituted by - 2 - halogen, C1-C3alkyl, C1-C3haloalkyl, C1-C3alkoxy, C1-C3halo- alkoxy, cyano and/or nitro, or R is one of the groups -SH or -S-C(O)OR4, wherein R4 is C1-C10alkyl, C1-C10haloalkyl, or a phenyl or benzyl group which is unsubstituted or substituted by halogen, C1-C3alkyl, C1-C3haloalkyl, C1-C3alkoxy, C1-C3halo- alkoxy, cyano and/or nitro, and to the preparation thereof starting from suitably substituted 15-hydroxy- or 13.beta.-hydroxymilbemycins of formula II.
496670
Frei Bruno
O'sullivan Anthony C.
Fetherstonhaugh & Co.
Sankyo Company Limited
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