Sinteza, karakterizacija i antioksidativna aktivnost proizvoda aminolize Hančovih dihidropiridina

Abstract

Supstituisani estri 1,4-dihidropiridina (1,4-DHP) nastaju u reakciji etil-acetoacetata i odgovarajućih supstituisanih aldehida u prisustvu amonijaka. Nastali estri sa primarnim aminima formiraju amide. Serija amida nastalih od navednih jedinjenja je sintetisana sa namerom da se ispitaju njihove karakteristike i antioksidativna aktivnost. U ovde prikazanom istraživanju za aminolizu upotrebljen je 2-aminotiazol. Antioksidativna aktivnost je ispitivana DPPH (2,2-difenil-1-pikrilhidrazil-radikal) i ABTS (2,2'-azino-bis(3-etilbenzotiazolin-6-sulfonska kiselina)) metodama, a pored toga određene su tačke topljenje, snimljeni IR spektri i izvršena je elementalna analiza.

The substituted esters of 1,4-dihydropyirdines (1,4-DHP) are formed in the reaction of ethyl acetoacetate and corresponding substituted aldehydes in the presence of ammonia. Amides form from esters of substituted 1,4-DHP by aminolysis employing primary amines. A series of amides of the mentioned compounds was synthesized with the aim to analyze their chemical properties and antioxidative activity. The amine used in the present research was 2-aminothiazole. The antioxidative activity was determined by DPPH (2,2-diphenyl-1-picrylhydrazyl radical) and ABTS (2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) methods; melting points and IR were measured and elemental analysis was performed.