[Hydrazide derivatives with biologically active 1,2,4-triazole support]

This study presents the synthesis of ten new hydrazides with 1,2,4-triazole support. The structures of the obtained compounds were elucidates by means of the elemental analysis data as well as by IR spectral measurements. The antimicrobial and antifungal actions of this derivates are also tested. The results show that the compounds with the functional group 4-chlore-2-methoxyphenyle are more active.

Derivatives of asparagic acid with hypotensive action

To obtain new compounds with biological activity, 1-[N-(p-nitrobenzoyl)-alpha-D,L- asparagyl]-benzimidazole derivatives were synthesized by decyclization of 2-(p-nitrophenyl)-4-[2'- (diethylamino) ethyl-carboxymethyl]-delta 2-oxazolinone-5 with benzimidazole, 2-methylbenzimidazole and 5,6-dimethyl-benzimidazole. The synthesized products show a hypotensive action comparable to that Hipopresol.

[The antibacterial action of new hydrazide derivatives]

New derivatives of 4-aminobenzoic and 4-chlorine-2-hydroxybenzoic acids hydrazides were synthesized by the condensation reaction of these hydrazides with aldehydes and ketones, derivatives containing in their molecule azometine and hydrazone groups. The obtained products are potentially bioactive. The study of their "in vitro" biological activity was performed on some pathogenic germs, both gram-positive and gram-negative. The results show that the tested substances are more active towards the gram-positive germs.