| 摘要 |
New antimicrobial spirocarbocyclic compounds are described, having the general formula I, <IMAGE> (I) or an acid-addition salt thereof, in which R1 represents an optionally substituted alkyl, cycloalkyl, cycloalkylalkyl, alkoxy, cycloalkoxy, alkoxyalkyl, aralkyl group R2 and R3 each independently represent hydrogen or an optionally substituted alkyl, alkenyl, alkynyl, cycloalkyl, cycloalkylalkyl, bicycloalkyl, tricycloalkyl, alkoxyalkyl, aralkyl, aryl or haloaralkyl, a 4- to 6-membered heterocyclyl, tetrahydrofuryl or dioxolanyl group, or R2 and R3, together represents an optionally substituted, saturated or unsaturated chain which may optionally contain one or more oxygen atoms and which may optionally be aryl- or cycloalkyl-fused, and n represents zero or an integer from 1 to 3. The invention further relates to the preparation of the above spirocarbocyclic compounds, intermediates prepared during the synthesis of these compounds, compositions containing the compounds and their use as fungicides in the control of phytopathogenic fungi.
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