Compounds of formula (1) have antibacterial activity:
wherein R represents hydrogen or 1, 2 or 3 optional substituents; W is ═C(R
1
)—; R
1
is hydrogen and R
2
is hydrogen, methyl, or fluorine; or R
1
and R
2
taken together are —CH
2
—, —CH
2
CH
2
, —O—, or, in either orientation, —O—CH
2
— or —OCH
2
CH
2
—; and R
3
is a radical of formula -(Alk
1
)
m
-(Z)
p
-(Alk
2
)-Q.
式(1)的化合物具有抗菌活性:其中R代表氢或1、2或3个可选取代基;W为═C(R1)—;R1为氢,R2为氢、甲基或
氟;或R1和R2组合为—
CH2—、— —、—O—,或者以任何方向为—O— —或—O —;R3是式-(Alk1)m-(Z)p-(Alk2)-Q的基团。