利福黴素（ＲＩＦＡＭＹＣＩＮ）衍生物农业专利-农业专业知识服务系统

发明人:: VISCOMI, GIUSEPPE CLAUDIO,维斯柯米　吉赛普　克劳迪欧,維斯柯米　吉賽普　克勞迪歐,CAMPANA, MANUELA,坎帕纳　曼纽拉,坎帕納　曼紐拉,FOLEGATTI, MAHENA,弗加堤　曼赫那,CANNATA, VINCENZO,卡纳塔　文森佐,卡納塔　文森佐,RIGHI, PAOLO,里希　保罗,里希　保羅,ROSINI, GOFFREDO,罗西尼,维斯柯米吉赛普克劳迪欧,維斯柯米吉賽普克勞迪歐,坎帕纳曼纽拉,坎帕納曼紐拉,弗加堤曼赫那,卡纳塔文森佐,卡納塔文森佐,里希保罗,里希保羅

摘要：: Disclosed are compounds including rifamycin derivatives having antibacterial activities, wherein the compounds have the following general formula：wherein：R is hydrogen or acetyl R1 and R2 are independently selected from the gorup consisting of hydrogen, (C1-4) alkyl, benzyloxy, mono- and di-(C1-3) alkylamino-(C1-4)alkyl, (C1-3)alkoxy, (C1-4)alkyl, hydroxy-methyl, hydroxy-(C2-4)-alkyl, and nitro or R1 and R2 taken together with two consecutive carbon atoms of the pyridine nucleus form a benzene ring optionally substituted by one or two methyl or ethyl groups and R3 is hydroxyalkyl (C1-4). In addition, processes to obtain these compounds are described.The compounds have antibacterial activity.揭示包括具有抗菌活性之利福黴素(rifamycin)衍生物之化合物，其中該等化合物具有如下通式：其中：R為氫或乙醯基，R1及R2分別係選自於由氫、(C1-4)烷基、苄氧基、一-及二-(C1-3)烷基胺-(C1-4)烷基、(C1-3)烷氧基、(C1-4)烷基、羥-甲基、羥-(C2-4)-烷基、及硝基所組成之組群，或R1及R2與吡啶核之二接續碳原子共同形成一個視需要可經以一個或二個甲基或乙基取代之苯環，及R3為羥烷基(C1-4)。此外，說明獲得此等化合物之方法。此等化合物具有抗菌活性。