The present invention relates to compounds of Formula I:
##STR1##
wherein:
- a)
##STR2##
- represents a 6-membered heterocyclic aromatic ring in which X1
is N and X2, X3 and X4 are each independently CR";
- R" is independently H, halogen, cyano, hydroxy, C1-C3
alkyl, C1-C3 haloalkyl, cyclopropyl, C1-C3
alkoxy, C1-C3 haloalkoxy, C1-C3 alkylthio,
aryl, C1-C3 NHC(O)alkyl, NHC(O)H, C1-C3 haloalkylthio,
C2-C4 alkenyl, C2-C4 haloalkenyl, C2-C4
alkynyl, C2-C4 haloalkynyl or nitro wherein adjacent
R" substituents may form a ring;
- b) Z is O, S or NORZ in which RZ is H or C1-C3
alkyl; and
- c) A represents
- (i) C3-C14 cycloalkyl, containing 1 or 3 heteroatoms
and 0-2 unsaturations, which may be unsubstituted or substituted with halogen,
hydroxy, C1-C6 alkyl, C1-C6 haloalkyl,
cyano, nitro, aroyl, aryloxy, heteroaryloxy, C1-C6 alkylthio,
arylthio, heteroarylthio, C1-C6 alkoxy, C1-C6
haloalkoxy, C1-C8 acyloxy, aryl, heteroaryl, C1-C6
acyl, C1-C6 carboalkoxy or amido unsubstituted or substituted
with one or two C1 -C6 alkyl groups, or
- (ii) C6-C14 bi- or tricyclic ring system,
containing 1-3 heteroatoms and 0-2 unsaturations, which may be unsubstituted or
substituted with halogen, hydroxy, C1-C6 alkyl, C1-C6
haloalkyl, cyano, nitro, aroyl, aryloxy, heteroaryloxy, C1-C6
alkylthio, arylthio, heteroarylthio, C1-C6 alkoxy,
C1-C6 haloalkoxy, C1-C8 acyloxy, aryl,
heteroaryl, C1-C6 acyl, C1-C6 carboalkoxy
or amido unsubstituted or substituted with one or two C1-C6 alkyl groups;
- which are useful as antifungal agents, particularly for plants.
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