Racemic compounds of formula:
and stereoisomers thereof, wherein Y is -CH= or =N-, R' is alkyl, cycloalkyl or optionally-substituted phenyl and R2 and R3, which may be the same or different, are hydrogen, alkyl, cycloalkyl, phenyl or benzyl or together make up a lactone ring; and acid addition salts, ethers, esters and metal complexes thereof; have fungicidal and plant growth regulating activity.
                            式的外消旋化合物及其立体异构体
及其立体异构体,其中 Y 为 -CH= 或 =N-,R' 为烷基、环烷基或任选取代的苯基,R2 和 R3(可以相同或不同)为氢、烷基、环烷基、苯基或苄基或共同组成一个内酯环;以及其酸加成盐、醚、酯和
金属络合物;具有杀菌和植物生长调节活性。