Abstract:
PROBLEM TO BE SOLVED: To provide new semi-synthesized macrolides having antibacterial activity, a pharmaceutical composition including these compounds, and a medical treatment method of remedy.SOLUTION: There is provided a 6-O-substituted erythromycin ketolide derivative expressed by formula (IV-A), where in formula, Rc is hydrogen or a hydroxy-protective group; R is a substituted methyl group; A, B, D and E are each selected from hydrogen, a 1-6C alkyl which may be substituted by a substituent, aryl, substituted aryl, heteroaryl, substituted heteroaryl, heterocycloalkyl, hydroxy, 1-6C alkoxy, and halogen of Br, Cl, F or I, or the like, under conditions that at least two of A, B, D and E are both hydrogen.
Abstract:
PROBLEM TO BE SOLVED: To provide a new semisynthesized macrolide having antibacterial activity.SOLUTION: The antibacterial compound having formula (II) or the like, and pharmaceutically acceptable salts, esters or prodrugs thereof, are provided. Pharmaceutical compositions each containing such a compound; methods for treating bacterial infections by administering such a compound; and a method for producing the compound; are also provided.
Abstract:
PROBLEM TO BE SOLVED: To provide antibacterial compounds. SOLUTION: Antibacterial compounds represented by formula (II), pharmaceutically acceptable salts, esters or prodrugs thereof, medicinal compositions including the same, methods for treating bacterial infections by administration of such compounds and a method for producing the compound are provided. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide novel semi-synthetic macrolides having antibacterial activity and pharmaceutical compositions containing these compounds and to provide medical methods for treating bacterial infection. SOLUTION: Antimicrobial compounds having formula (III) as well as pharmaceutically acceptable salts, esters or prodrugs thereof are provided herein. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a new antibacterial compound with enhanced activity. SOLUTION: Antibacterial compounds represented by formula (II) or the like, pharmaceutically acceptable salts, esters or prodrugs thereof, medicinal compositions including the same, treatment methods for bacterial infections by administration of such compounds and a method for producing the compound are provided. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a medicine for bacterial infection. SOLUTION: The invention relates to the compounds represented by formula (IV) in the specification. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a new class 6-O-substituted erythromycin derivative having increased acid stability to erythromycin A and 6-O-methylerythromycin A, and enhanced activity to gram-negative bacteria and macrolide-resisting gram-positive bacteria. SOLUTION: Provided are an antibacterial compound having structural formula (V) and the like as well as pharmaceutically permissible salts, esters or prodrugs thereof; pharmaceutical compositions comprising the compound; a therapeutic method of bacterial infection by administering the compound; and a production method of the compound. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
Compounds of formula (I), and formula (II), or therapeutically acceptable salts or prodrugs thereof are useful as antibacterial agents. Methods to make the compounds, compositions containing the compounds, and methods of treatment using the compounds are also disclosed.
Abstract:
The present invention relates to 6-O-alkyl-2-nor-2-substituted ketolide compound or a derivative thereof, a composition comprising the compound and a suitable carrier, a method of preparing the compound, and a method of treatment and prevention of in mammals comprising administering said compound.
Abstract:
The invention relates to novel methods for using macrolide anti-infective agents. The macrolide anti-infective agents demonstrate antibacterial activity against multi-drug resistant strains of bacteria and, in particular, methicillin-resistant Staphylococcus aureus (MRSA). Methods for inhibiting the activity of multi-drug resistant bacterial organisms and methods for treating a bacterial infection caused by such organisms are described herein.