申请人:Daiichi Pharmaceutical Co., Ltd.
公开号:US07723524B2
公开(公告)日:2010-05-25
To provide a quinolone antibacterial drug and a therapeutic agent for infectious diseases, which exhibit potent antibacterial activity on Gram-positive and Gram-negative bacteria and which is highly safe.
A compound represented by the following formula (1):
(wherein R1 represents a C3-C6 cycloalkyl group which may have a substituent or the like; R2 represents a hydrogen atom or the like; R3 and R4 each independently represent a hydrogen atom or a C1-C6 alkyl group, or a substituted carboxyl group derived from an amino acid, a dipeptide, or a tripeptide, and, in the case where each of R3 and R4 represents a C1-C6 alkyl group, the alkyl group may be substituted by one or more atoms or groups selected from among a hydroxyl group, a halogen atom, a C1-C6 alkylthio group, and a C1-C6 alkoxy group; and n denotes an integer of 1 to 3), a salt thereof, and a hydrate of the compound or the salt. Also, antibacterial drugs and therapeutic agents for infectious diseases are prepared.
提供一种喹诺酮类抗菌药和治疗感染病的药物,该药物对革兰氏阳性和革兰氏阴性菌具有强效的抗菌活性且具有高度的安全性。化合物的结构式如下(1)所示:(其中,R1代表C3-C6环烷基,可以具有取代基等;R2代表氢原子或类似物;R3和R4各自独立地代表氢原子或C1-C6烷基,或由氨基酸、二肽或三肽衍生的取代羧基,当R3和R4各自代表C1-C6烷基时,该烷基可以被一个或多个从羟基、卤原子、C1-C6烷基硫基和C1-C6烷氧基中选择的原子或基取代;n表示1至3的整数),以及该化合物或其盐和水合物。此外,还制备了抗菌药和治疗感染病的药物。