| 摘要 |
<p>Compounds of formula (I): …<IMAGE>… in which X is a sulphur or oxygen atom, Y is C=O, C=S or CH2, R1 is hydrogen, halogen, saturated or unsaturated, linear, branched or cyclic alkyl optionally substituted by halogens (->8C) or aryl (->14C), R2 is hydrogen, saturated or unsaturated, linear, branched or cyclic alkyl (->8C) optionally substituted by halogens, aryl (->14C), CF3, NO2, C=H or halogen, alkoxy, ester, R3 is hydrogen, C1-3 alkyl, C=CH and A denotes the residue of a pyrethrinoid acid ACO2H, in all their possible stereoisomeric forms, and the mixtures of these stereoisomers.</p> |
