申请人:Eli Lilly and Company
公开号:US06369049B1
公开(公告)日:2002-04-09
The invention provides new fluorinated cephalosporin antibiotics of Formula I
wherein
Ra, Rb, Rc, Rd and Re, independently, are H, F or a C1-C6 alkyl-(Z)n— group having at least one fluorine substituent;
X is O or S;
Y is S, O, or —CH2—;
Z is O, S, —SO—, or —SO2—;
m and n independently are 0 or 1; and
R1 is H, C1-C6-alkyl, phenyl or benzyl, each of which may optionally have up to three substituents selected from halo, C1-C4-alkoxy, phenyl, NO2, C1-C6-alkanoyl, benzoyl, or C1-C6-alkanoyloxy; or a physiologically acceptable salt thereof;
and methods of preventing or treating or treating infection, particularly mastitis in ruminants, using these antibiotics.
该发明提供了一种新的氟化头孢菌素抗生素,其化学式为I,其中Ra、Rb、Rc、Rd和Re独立地为H、F或具有至少一个氟取代基的C1-C6烷基-(Z)n—基团;X为O或S;Y为S、O或—CH2—;Z为O、S、—SO—或—SO2—;m和n独立地为0或1;R1为H、C1-C6烷基、苯基或苄基,每种基团可选择性地具有最多三个取代基,所述取代基选自卤素、C1-C4烷氧基、苯基、NO2、C1-C6烷酰基、苯甲酰基或C1-C6烷酰氧基;或其生理上可接受的盐;以及使用这些抗生素预防、治疗或治疗感染,特别是在反刍动物中的乳腺炎的方法。