An antibacterial agent having high antibacterial activity against
Mycobacterium avium
subsp.
paratuberculosis
is provided. Specifically, the antibacterial agent of the present invention having high antibacterial activity against
Mycobacterium avium
subsp.
paratuberculosis
is a caprazamycin derivative represented, for example, by the following general formula (II):
wherein Me is a methyl group; and R
1
is a straight or substantially straight chain alkyl group having 5 to 21 carbon atoms, a straight or substantially straight chain alkenyl group having 5 to 21 carbon atoms, a cycloalkyl group having 5 to 12 carbon atoms, or a phenyl group substituted at the para-position with a straight chain alkyl group having 1 to 14 carbon atoms, a straight chain alkoxy group having 1 to 9 carbon atoms or a cycloalkyl group having 5 to 12 carbon atoms.
提供了一种对鲁氏分枝杆菌亚种鲁氏分枝杆菌具有高抗菌活性的抗菌剂。具体来说,本发明的抗菌剂对鲁氏分枝杆菌亚种鲁氏分枝杆菌具有高抗菌活性,例如由以下通用公式(II)表示的卡普拉霉素衍
生物:其中Me是一个
甲基基团;而R1是一个由5至21个
碳原子组成的直链或几乎直链烷基基团,由5至21个
碳原子组成的直链或几乎直链
烯基基团,由5至12个
碳原子组成的
环烷基基团,或者在对位上用具有1至14个
碳原子的直链烷基基团、具有1至9个
碳原子的直链烷
氧基基团或由5至12个
碳原子组成的
环烷基基团取代的
苯基团。