| 摘要 |
<p>A compound of formula (I), wherein R?1 and R2¿ are each independently hydrogen, optionally substituted lower hydrocarbyl, or optionally substituted heteroaryl, or R?1 and R2¿ together with the nitrogen atom to which they are attached, form a heterocyclic ring; R?3, R4, R5 and R6¿ are independently H or C¿1-4? alkyl; Z represents halogen, optionally substituted lower hydrocarbyl, optionally substituted lower hydrocarbyloxy, optionally substituted lower hydrocarbylthio, hydrocarbylsulphinyl, or hydrocarbylsulphonyl, cyano, nitro, CHO, NHOH, ONR?7'R7'', SF¿5, CO(optionally substituted lower hydrocarbyl), acylamino, COOR7, SO2NR?8R9, CONR10R11, OR12 or NR13R14¿ where R?7, R7', R7'', R8, R9, R10 and R11¿ are independently H or lower hydrocarbyl; R12 is hydrogen, SO¿2? lower hydrocarbyl or COR?15; R13 and R14¿ are independently lower hydrocarbyl, lower hydrocarbyloxy or a group R?12; R15 is OR16, NR17R18¿, hydrogen or lower hydrocarbyl; R16 is lower hydrocarbyl, R?17 and R18¿ are independently hydrogen or lower hydrocarbyl provided that when there are two or more substituents Z, they may be the same or different; and m is 0 or an integer from 1 to 5.</p> |
