RESUMO
Five oxypropanol amine derivatives that four of them are novel have been synthesized with high yields and practical methods. in vitro antibacterial susceptibility of Acinetobacter baumannii, Pseudomonas aeruginosa, Escherichia coli and Staphylococcus aureus strains to synthesized substances were evaluated with agar well-diffusion method by comparison with commercially available drugs. Most of the bacteria were multidrug resistant. It was concluded that these compounds are much more effective than reference drugs. These eugenol bearing oxypropanolamine derivatives were also effective inhibitors against α-glycosidase, cytosolic carbonic anhydrase I and II isoforms (hCA I and II), and acetylcholinesterase (AChE) enzymes with Ki values in the range of 0.80⯱â¯0.24-3.52⯱â¯1.01⯵M for hCA I, 1.08⯱â¯0.15-3.64⯱â¯0.92⯵M for hCA II, 5.18⯱â¯0.84-12.46⯱â¯2.08⯵M for α-glycosidase, and 11.33⯱â¯2.83-32.81⯱â¯9.73⯵M for AChE, respectively.
Assuntos
Antibacterianos/farmacologia , Antagonistas Colinérgicos/farmacologia , Inibidores Enzimáticos/farmacologia , Eugenol/farmacologia , Hipoglicemiantes/farmacologia , Propanolaminas/farmacologia , Acetilcolinesterase/metabolismo , Acinetobacter baumannii/efeitos dos fármacos , Antibacterianos/síntese química , Antibacterianos/química , Anidrase Carbônica I/antagonistas & inibidores , Anidrase Carbônica I/metabolismo , Anidrase Carbônica II/antagonistas & inibidores , Anidrase Carbônica II/metabolismo , Antagonistas Colinérgicos/síntese química , Antagonistas Colinérgicos/química , Relação Dose-Resposta a Droga , Inibidores Enzimáticos/síntese química , Inibidores Enzimáticos/química , Escherichia coli/efeitos dos fármacos , Eugenol/síntese química , Eugenol/química , Glicosídeo Hidrolases/antagonistas & inibidores , Glicosídeo Hidrolases/metabolismo , Hipoglicemiantes/síntese química , Hipoglicemiantes/química , Testes de Sensibilidade Microbiana , Estrutura Molecular , Propanolaminas/síntese química , Propanolaminas/química , Pseudomonas aeruginosa/efeitos dos fármacos , Staphylococcus aureus/efeitos dos fármacos , Relação Estrutura-AtividadeRESUMO
A series of classical and newly synthesized thymol bearing oxypropanolamine compounds were synthesized and characterized. Their in vitro antibacterial activity on A. baumannii, P. aeruginosa, E. coli and S. aureus strains were investigated with agar well diffusion method. The results were compared with commercially available drug active compounds. As well as 3a, 3b and 3c have the most significant antibacterial effect among all the tested compounds; approximately all of them have more antibacterial activity than the reference drugs. These novel thymol bearing oxypropanolamine derivatives were effective inhibitors of the α-glycosidase, cytosolic carbonic anhydrase I and II isoforms (hCA I and II), and acetylcholinesterase enzymes (AChE) with Ki values in the range of 463.85-851.05⯵M for α-glycosidase, 1.11-17.34⯵M for hCA I, 2.97-17.83⯵M for hCA II, and 13.58-31.45⯵M for AChE, respectively.
