14- and 15-hydroxy milbemycin derivatives for controlling plant

Details 14- and 15-hydroxy milbemycin derivatives for controlling plant 14- and 15-hydroxy milbemycin derivatives for controlling plant

1984-10-25

1986-04-15

Hollrah, Glennon H.

Drug, bio-affecting and body treating compositions

Designated organic active ingredient containing

Having -c-, wherein x is chalcogen, bonded directly to...

549264, 549265, C07D49520, C07D49522, A01N 4322, A61K 31365

Patent

active

045828520

ABSTRACT:
Milbemycin derivatives of the formula I ##STR1## wherein A has the structure ##STR2## or the structure ##STR3## X is either --CH(OR.sub.1)-- or --CO--, R.sub.1 is hydrogen, a silyl group or an acyl group, and R.sub.2 is methyl, ethyl, isopropyl or sec-butyl, can be prepared by singulett oxygen oxidation of the milbemycin derivatives of the formula II herein, wherein X and R.sub.2 have the above meanings, and subsequent reduction of the 15- and 14-peroxides obtained as intermediates. Compounds of the formula I can be prepared as such or in the form of compositions for controlling endo- and ectoparasites, in particular nematodes which are parasites of animals.

REFERENCES:
patent: 4173571 (1979-11-01), Chabala et al.
patent: 4201861 (1980-05-01), Mrozik et al.
patent: 4289760 (1981-09-01), Mrozik et al.
patent: 4328335 (1982-05-01), Mrozik
patent: 4469682 (1984-09-01), Mrozik

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