Disclosed are compounds of formula (I) wherein R1 and R2 are independently selected from hydrogen, halo, CF3, C1-4alkyl and allyl; Y represents (II), (III), (IV) or (V) wherein R3 represents CF3 or C1-4alkyl; and R3a represents CF3 or C1-4alkyl.
公开的是式(I)的化合物,其中R1和R2分别选自
氢、卤素、
CF3、C1-4烷基和
烯丙基;Y代表(II)、(III)、(IV)或(V),其中R3代表 或C1-4烷基;而R3a代表 或C1-4烷基。