SYNTHESIS, CHARACTERIZATION AND IN VITRO ANTIFUNGAL EVALUATION OF NOVEL BENZIMIDAZO[1,2-c]QUINAZOLINES

The synthesis of a series of new benzimidazo[1,2-c]quinazolines starting from 2-nitrobenzaldehyde and o-phenylendiamine is described. The structure elucidation of the products is based on detailed NMR analysis of experiments such as ¹H-COSY, NOESY, DEPT, HSQC and HMBC. These compounds showed antifun...

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Autores principales: INSUASTY,B. A., TORRES,H., QUIROGA,J., ABONÍA,R., RODRÍGUEZ,R., NOGERAS,M., SÁNCHEZ,A., SAITZ,C., ALVAREZ,S. L., ZACCHINO,S. A.
Lenguaje:English
Publicado: Sociedad Chilena de Química 2006
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Acceso en línea:http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072006000200018
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Sumario:The synthesis of a series of new benzimidazo[1,2-c]quinazolines starting from 2-nitrobenzaldehyde and o-phenylendiamine is described. The structure elucidation of the products is based on detailed NMR analysis of experiments such as ¹H-COSY, NOESY, DEPT, HSQC and HMBC. These compounds showed antifungal properties only against dermatophytes. Among them, those with electron-donor substituents on the 6-phenyl ring inhibited mainly T. rubrum and E. floccosum with MICs between 25-250 µg/mL and M. canis, M. gypseum and T. mentagrophytes with MICs between 50-250 µg/mL. Structures with electron-withdrawing substituents on the phenyl ring did not show any activities up to 250 µg/ml. Methyl substituents on the benzimidazole ring seem negatively affect the antifungal behaviour of this series