Comparative studies on conventional and solvent-free synthesis toward hydrazones: application of PXRD and chemometric data analysis in mechanochemical reaction monitoring
chemometric study using principal component analysis for mechanochemical synthesis monitoring was implemented for the first time to provide an insight into the reaction profiles. A thoughtful combination of ex situ powder X-ray diffraction and chemometric analysis was essential to identify a stepwise mechanism for the hydrazone formation via an intermediate phase. In five investigated reactions the first
The present invention relates to broad spectrum β-lactamase inhibitors. More particularly, the invention relates to inhibitors of Class B metallo (MBL) and Class D (OXA) β-lactamases. A method of treating a bacterial infection is provided, wherein the method comprises administering to a mammalian patient in need of such treatment a compound of formula (I)
wherein
R
1
is selected from
R
2
is selected from
with certain provisos as herein defined;
in combination with a pharmaceutically acceptable β-lactam antibiotic in an amount which is effective for treating the bacterial infection.
Synthesis and spectral characterization of ternary complexes of oxovanadium(IV) containing some acid hydrazones and 2,2′-bipyridine
作者:P.B. Sreeja、M.R.Prathapachandra Kurup
DOI:10.1016/j.saa.2004.04.001
日期:2005.1
An interesting series of heterocyclic base adducts of oxovanadium(IV) complexes have been synthesized by the reaction of vanadium(IV) oxide acetylacetonate with some hydrazones (H(2)L) in the presence of a heterocyclic base 2,2'-bipyridine. The compounds were characterized by analytical and different physico-chemical techniques like IR, electron paramagnetic resonance (EPR) and UV-Vis spectral studies
A library of acylhydrazone iron chelators was synthesized and tested for its ability to inhibit the growth of a chloroquine-resistant strain of Plasmodium falciparum. Some of these new compounds are significantly more active than desferrioxamine DFO, the iron chelator in widespread clinical use and also than the most effective chelators. (c) 2005 Elsevier Ltd. All rights reserved.