| 摘要 |
<p>A compound of formula (I) or a salt thereof:wherein:P1 is pyridiyl;P2 is phenyl;A is a bond or a chain of 1 to 5 atoms optionally substituted by C1-6 alkyl;R1 and R2 groups are each independently hydrogen, C1-6alkyl optionally substituted by NR12R13, C2-6alkenyl, C2-6alkynyl, cyano, halogen, CF3, NR12R13, CHO, OCF3, COR14, CH2OR14 or OR14 where R12, R13 and R14 are independently hydrogen or C1-6alkyl;n and m are independently 0, 1 or 2;R3 is hydrogen or C1-6 alkyl;R4 is a group of formula (i):in which:R6 and R7 are independently hydrogen, C1-6 alkyl optionally substituted by one or more fluorine atoms, C1-6alkylthio, C1-6alkoxy or halogen.</p> |
