Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Having -c- – wherein x is chalcogen – bonded directly to...
Patent
1989-03-01
1990-04-17
Raymond, Richard L.
Drug, bio-affecting and body treating compositions
Designated organic active ingredient containing
Having -c-, wherein x is chalcogen, bonded directly to...
549264, 549265, 549214, A61K 31365
Patent
active
049180975
ABSTRACT:
The present invention relates to novel derivatives of formula I that can be derived from milbemycins, to their preparation and their use for controlling pests, and also to pesticides that contain at least one of these compounds as active ingredient.
The novel compounds have the general formula I ##STR1## in which X is one of the groups --CH(OR.sub.1)--, --C(O)-- or --C(=N--OR)--;
R.sub.1 is hydrogen or an OH-protecting group;
R is hydrogen, an OH-protecting group, or an alkyl or cycloalkyl group;
R.sub.2 is methyl, ethyl, isopropyl or sec.-butyl;
and
Ph is a phenyl ring that is substituted by R.sub.a, R.sub.b, R.sub.c and R.sub.d, wherein each of R.sub.a, R.sub.b, R.sub.c and R.sub.d, independently of the others, is hydrogen, C.sub.1 -C.sub.10 alkyl, C.sub.2 -C.sub.10 alkoxyalkyl, C.sub.2 -C.sub.10 alkenyl, C.sub.1 -C.sub.10 alkoxy, C.sub.2 -C.sub.10 alkoxyalkoxy, or a phenyl or phenoxy radical that is unsubstituted or is substituted by at least one substituent from the group C.sub.1 -C.sub.3 alkyl and C.sub.1 -C.sub.3 alkoxy.
REFERENCES:
patent: 4584314 (1986-04-01), Burckhardt
patent: 4696945 (1987-09-01), Frei et al.
Acc. Chem. Res. 1982, p. 8, Negishi.
Chem. Letters, 1982, p. 10, Sato.
Tetrahedron Letters 21, p. 10, Yoshioka (1980).
Ciba-Geigy Corporation
Owens Amelia A.
Raymond Richard L.
Roberts Edward M.
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