[EN] HETEROBICYCLIC COMPOUNDS AS BETA-LACTAMASE INHIBITORS<br/>[FR] COMPOSÉS HÉTÉROBICYCLIQUES COMME INHIBITEURS DE LA BÊTA-LACTAMASE
申请人:ASTRAZENECA AB
公开号:WO2013150296A1
公开(公告)日:2013-10-10
The present invention is directed to compounds which are beta-lactamase inhibitors. The compounds and their pharmaceutically acceptable salts, are useful in combination with beta-lactam antibiotics, or alone, for the treatment of bacterial infections, including infections caused by drug resistant organisms, including multi-drug resistant organisms. The present invention includes compounds according to formula (Ia): or a pharmaceutically acceptable salt thereof, wherein the values of R1, R 2, R 3 and R 4 are described herein.
The present invention is directed to a new class of monobactam derivatives and their use for treating bacterial infections.
本发明涉及一类新的单环内酰胺衍生物及其用于治疗细菌感染的用途。
Preparation of Pyridine Derivatives from the Corresponding 5-Acetal-1-carbonyl Compounds by Acid Promoted Cyclization
作者:Hiroyuki Konno、Hiromichi Mihara、Yuki Watanabe
DOI:10.3987/com-21-14457
日期:——
The synthesis of four alkylpyridine derivativesfrom 5-acetal-1-carbonyl compounds via the one-pot, acid-promoted cyclization of oxime intermediates is described. In addition, a dihydroxypyridine and pyridinium salt were also synthesized. The pyridineformation step was not affected by the stereochemistry of the precursors used.
PROCESS FOR THE PREPARATION OF SUBSTITUTED PYRIDONE CARBOXYLIC ACIDS
申请人:KULANGARA VIJAYA RAJ KUNIYIL
公开号:US20100076199A1
公开(公告)日:2010-03-25
The present invention relates to methods for the preparation of pyridone carboxylic acids for use as intermediates in the preparation of various synthetic organic compounds. The pyridone carboxylic acids can for example be used as intermediates in the production of potent antitumor agents, antifungal agents, antiviral agents, psychotherapeutic agents or contrast imaging agents for MRI.
The present invention provides a novel compound which has a broad antibacterial spectrum and particularly exhibits a high antibacterial activity on β-lactamase-producing gram-negative bacteria. Specifically provided are: a compound represented by formula (I)
wherein the meaning of each symbol is as defined in the description, an amino-group-protected form of a type of the compound which has the amino group on a ring in a position-7 side chain, or a pharmaceutically acceptable salt of the compound or the amino-group-protected form; and a pharmaceutical composition containing the compound, the amino-group-protected form or the pharmaceutically acceptable salt.