申请人:IMPERIAL CHEMICAL INDUSTRIES PLC
公开号:EP0461797A1
公开(公告)日:1991-12-18
A compound of formula (I):
where R1 is alkyl, optionally substituted aryl or optionally substituted heterocyclyl;
R2 is hydrogen, optionally substituted lower alkyl, lower alkoxy, cycloalkyl, haloalkyl, lower thioalkyl, halo or cyano; or the group R1 is a group of sun formula (i):
where q is 0 or an integer of from 1 to 4 and groups R6 are selected independently from hydroxy, alkyl, alkoxy, alkylcarbonyl, halogen, nitrile, nitro, haloalkyl and haloalkoxy; X is oxygen or sulphur, p is 0 or 1, n is 0 or 1 and m is 1, 2 or 3 provided that when n is 0, p + m is 2 or 3 and when n is 1, p + m is 1 or 2;
R3 and R4 are independently selected from hydrogen, halo, alkyl or alkoxy or R3 and R4 together with the carbon atom to which they are attached form a carbocyclic ring; and
R5 is CN; CO2R7 where R7 is hydrogen, a cation or an esterifying group; a group -CYNR8 R9 where Y is oxygen or sulphur and R8 and R9 are independently selected from hydrogen, hydroxy, alkyl or alkoxy or together with the nitrogen atom to which they are attached form a heterocyclic ring; or R8 together with R3 and the group
to which it is attached form a heterocyclic ring, or R5 is a group of sub formula (ii)
where R10, R", R12 and R13 are independently selected from hydrogen or alkyl; or a group S(O)r R14 where r is 0, 1 or 2 and R14 is hydroxy, lower alkyl or aryl.
化合物的化学式(I):其中R1是烷基,可选的取代芳基或可选的取代杂环基;R2是氢,可选的取代较低烷基,较低烷氧基,环烷基,卤代烷基,较低硫代烷基,卤素或氰基;或者R1是式(i)的基团:其中q为0或1至4的整数,基团R6独立选择自羟基,烷基,烷氧基,烷基羰基,卤素,腈基,硝基,卤代烷基和卤代烷氧基;X为氧或硫,p为0或1,n为0或1,m为1、2或3,但当n为0时,p+m为2或3,当n为1时,p+m为1或2;R3和R4独立选择自氢,卤素,烷基或烷氧基,或者R3和R4与它们所附着的碳原子形成一个碳环;R5为CN;CO2R7,其中R7为氢,阳离子或酯化基团;或者为-CYNR8R9,其中Y为氧或硫,R8和R9独立选择自氢,羟基,烷基或烷氧基,或者与它们所附着的氮原子形成一个杂环;或者R8与R3及其所附着的基团形成一个杂环,或者R5为式(ii)的基团:其中R10、R11、R12和R13独立选择自氢或烷基;或者为S(O)rR14的基团,其中r为0、1或2,R14为羟基,较低烷基或芳基。