The invention concerns a compound of formula (I) wherein for example R1 is of the formula —NHC(═O)Ra wherein Ra is hydrogen, or (1-4C)alkyl; R2 and R3 are independently hydrogen or fluoro, R4 is hydrogen, (1-4C)alkyl, halo or trifluoromethyl; R5 and R6 are, for example, independently hydrogen, (1-4C)alkyl, an acetylene of the formula -≡-H or -≡-(1-4C)alkyl, or a group of formula (IA) wherein, for example, Z is hydrogen or (1-4C)alkyl; X and Y are (1-4C)alkyl, halo, cyano, phenyl or heteroaryl; provided that X, Y and Z do not define a (2-4C)alkenyl group and provided that at least one of R5 and R6 is a group of formula (IA) or an acetylene of the formula -≡-H or -≡-(1-4C)alkyl; and pharmaceutically acceptable salts thereof; processes for their preparation; pharmaceutical compositions containing them and their use as antibacterial agents.
本发明涉及式(I)的化合物,其中例如R1为式—NHC(═O)Ra,其中Ra为氢或(1-4C)烷基;R2和R3独立地为氢或
氟;R4为氢,(1-4C)烷基,卤素或三
氟甲基;R5和R6例如独立地为氢,(1-4C)烷基,式为-≡-H或-≡-(1-4C)烷基的
乙炔基,或式(IA)的基团,其中例如Z为氢或(1-4C)烷基;X和Y为(1-4C)烷基,卤素,
氰基,苯基或杂环芳基;前提是X、Y和Z不定义为(2-4C)烯基基团,且至少一个R5和R6为式(IA)的基团或式为-≡-H或-≡-(1-4C)烷基的
乙炔基;以及其药学上可接受的盐;其制备方法;含有它们的制药组合物以及它们作为抗菌剂的用途。