Design, synthesis and antibacterial activity of novel ketolides bearing an aryltetrazolyl-substituted alkyl side chain
摘要:
合成了一组17种新型酮类抗生素,具有取代芳基四氮唑的烷基侧链,并评估了它们的抗菌活性。芳基四氮唑基团的选择是为了替代泰利霉素侧链中的杂芳基,旨在设计新的化合物。详细报告了芳基四氮唑烷基胺的合成过程。新型酮类抗生素的抗菌活性是针对包括大环内酯耐药菌在内的多种病原体进行评估,使用泰利霉素作为参考。许多评估的化合物对包括金黄色葡萄球菌(除了 S. aureus AD-08)、绿脓杆菌和大肠杆菌在内的红霉素敏感菌和红霉素耐药菌表现出显著的抗菌活性。在这些化合物中,化合物11e与其他化合物相比,显示出对所有菌株的极佳抗菌效能。
ω-(5-Phenyl-2H-tetrazol-2-yl)alkyl-substituted glycine amides and related compounds as inhibitors of the amine oxidase vascular adhesion protein-1 (VAP-1)
were obtained. Studies on the mechanism of action revealed that the glycine amides are substrate inhibitors, i.e., they are also converted to an aldehyde derivative. However, the reaction proceeds much more slowly than that of the substrate used in the assay, whose conversion is thus blocked. Examination of the selectivity of the synthesized glycine amides with respect to other amine oxidases showed
A set of 17 novel ketolides bearing an aryltetrazolyl-substituted alkyl side chain were synthesized and evaluated for their antibacterial activities, which the aryltetrazolyl group was selected to replace the hetero-aryl moiety of the side chain in telithromycin for designing new compounds. The synthesis of aryltetrazolyl alkylamines was reported in detail. The antibacterial activities of new ketolides were evaluated against a number of pathogens including macrolide-resistant organisms by using telithromycin as the reference. Many of the evaluated compounds exhibited remarkable activities against both erythromycin-susceptible and erythromycin-resistant organisms such as Staphylococcus aureus (except S. aureus AD-08), Pseudomonas aeruginosa and Escherichia coli. Among these, the compound 11e exhibited excellent antibacterial potency against all the strains in comparison with others.
合成了一组17种新型酮类抗生素,具有取代芳基四氮唑的烷基侧链,并评估了它们的抗菌活性。芳基四氮唑基团的选择是为了替代泰利霉素侧链中的杂芳基,旨在设计新的化合物。详细报告了芳基四氮唑烷基胺的合成过程。新型酮类抗生素的抗菌活性是针对包括大环内酯耐药菌在内的多种病原体进行评估,使用泰利霉素作为参考。许多评估的化合物对包括金黄色葡萄球菌(除了 S. aureus AD-08)、绿脓杆菌和大肠杆菌在内的红霉素敏感菌和红霉素耐药菌表现出显著的抗菌活性。在这些化合物中,化合物11e与其他化合物相比,显示出对所有菌株的极佳抗菌效能。
HPLC-UV assays for evaluation of inhibitors of mono and diamine oxidases using novel phenyltetrazolylalkanamine substrates
作者:Kira Mergemeier、Matthias Lehr
DOI:10.1016/j.ab.2018.03.007
日期:2018.5
inhibitors of plasma amine oxidase (PAO) using 6-(5-phenyl-2H-tetrazol-2-yl)hexan-1-amine (4) as a new type of substrate. Now we studied, whether this compound or homologues of it can also function as substrate for related amine oxidases, namely diamine oxidase (DAO), monoamine oxidase A (MAO A) and monoamine oxidase B (MAO B). Among these substances, 4 was converted by DAO with the highest rate. The best