objective(s):to optimize the extraction method using response surface methodology, extract the phenolic compounds, and identify the antioxidant and biological properties of stachys parviflora l.  extracts. materials and methods: maceration and ultrasound-assisted extraction (uae) (4, 7, 10 min treatment time, 40, 70, 100 % high-intensity and 60, 80, 100 % (v v-1) methanol purity) were applied t...

antioxidants act as free radical scavengers in the oxidation processes. thus, they will certainly play diverse roles in the biological systems and the therapy of a wide variety of diseases. regarding this fact, in the present study, we synthesized two new salen ligand compounds by the condensation of ethylendiamine and salicylaldehyde derivatives in excellent yields.the structures of these liga...

The chemistry of sulphone hydrazide has gained increase interest in both synthetic organic chemistry and biological fields and has considerable value. The therapeutic importance of these compounds is the attractive force to continue research in such a point. The present review covers the literature up to date for the synthesis, reactions and applications of such compounds. Keywords—Sulphone hyd...

Benzimidazoles are a very well-known, broad group of compounds containing nitrogen atoms in their structure that can mimic properties DNA bases. The show not only biological activities but also used for spectral and catalytic properties. Biological activity benzimidazoles be tuned accelerated coordination compounds. This minireview is focused on preparation bis(benzimidazoles), complexes, found...

heterocyclic systems are one of the most important classes of organic compounds present in nature or synthesized in laboratory. these compounds posses an array of biological activities and are employed in the treatment of commonly occurring diseases. keeping this in view, some new 2-amino-4,6-diarylpyrimidine from chalcones were synthesized. eight novel 2-amino-4,6-diarylpyrimidine derivatives ...