the feasibility of extractive reaction of methacrylic acid from aqueous solution using a quaternary amine, tri–octyl methyl ammonium chloride (tomac) as an extractant, was studied. the diluents chosen in the present work belong to different chemical classes, n–butyl acetate, carbon tetrachloride, isoamyl alcohol, methyl isobutyl ketone, and toluene. the effect of initial acid concentration in t...

Anti-inflammatory potency of 5-hydroxypyrimidine derivatives SNK-411 (2-isobutyl-4,6-dimethyl-5-hydroxypirimidine) and SNK-578 (hydrochloride 2-isobutyl-4,6-dimethyl-5-hydroxypirimidine) was evaluated on the model complete Freund`s adjuvant (CFA)-induced exudative inflammation in experiment 60 outbreed male rats weighing 180–200 g comparison with prednisolone. Prednisolone, were injected twice:...

Naphthalimides make up a class of organic molecules characterised by excellent spectroscopic properties due to their extended conjugate system. Furthermore, various asymmetric or symmetric compounds can be obtained from naphthalimides the different functionalization that performed on nitrogen and/or aromatic rings. The introduction wide range substituents in positions allows chemical and regula...

The present invention provides a new process for the preparation of 2S,3S-N-isobutyl-N-(2-hydroxy-3-amino-4phenylbutyl)-p-nitrobenzenesulfonylamide hydrochloride, wherein this compound is prepared directly from the chloromethylalcohol. Importantly, the process of the present invention results in higher yields of 2S,3S-N-isobutyl-N-(2hydroxy -3 -amino -4-phenylbu tyl) -pnitrobenzenesulfonylamide...