10.1080/00397910801982001
The study presents a novel synthetic method for the production of 5-(N-phenethylamino)salicylic acid derivatives, which are compounds with potential neuroprotective activity against N-methyl-D-aspartic acid (NMDA) neurotoxicity and strong antioxidant properties. The researchers utilized sodium borohydride (NaBH4) and acetic acid as the key reagents in a dioxane system to selectively reduce the amide group over the ester group in acyl-protected salicylic acid derivatives. This selective reduction was followed by the hydrolysis of the ester group to yield the desired salicylic acid products. The chemicals served the purpose of facilitating a rapid and selective synthesis route, which is advantageous for producing various 5-(N-phenethylamino)salicylic acid derivatives and can be applied to scaled-up production.
10.1007/BF00766247
The research investigates the central nervous system (CNS) stimulant effects of N-acyl derivatives of glutamic and aspartic acids. The study explores how these derivatives interact with glutamate-recognizing sites in rat brain synaptic membranes and their convulsive activity when directly injected into the brain. Key chemicals used in the research include N-acyl derivatives of glutamic and aspartic acids (I-XVII), which were synthesized from various starting materials such as phenoxyacetic acid, benzoylpropionic acid, phenylbutyric acid, naphthylacetic acid, and diphenyl-ethoxyacetic acid. Other notable chemicals include glutamic diethyl ether, NMDA (N-methyl-D-aspartic acid), and kainate, which were used to test the convulsive and anticonvulsive activities of the synthesized compounds. The study aims to understand the relationship between the structure of these derivatives and their pharmacological activity, revealing that the presence and arrangement of polar and lipophilic groups in the acyl radical significantly influence their stimulant effects and potential as new pharmacologically active compounds targeting the excitatory amino acid system in the CNS.
