Synthesis and Antimicrobial Activity of Novel Quinazolone Derivatives
作者:N.S. Habib、M.A. Khali
DOI:10.1002/jps.2600730731
日期:1984.7
Three novel series of 4-oxoquinazoline derivatives were prepared and evaluated as potential antimicrobial agents. Evaluation of the antimicrobialactivity of a variety of 4-substituted-1-thiosemicarbazides, 3,4-disubstituted thiazolines, and 3-substituted-5-thiazolidones reveals that the majority possess significant in vitro activity against Gram-positive organisms. Some derivatives also exhibited
Sialic acid reducing units are passivated, for instance by reduction, or by reductive amination or capping. The process is useful for producing chemically inert sialic acid compounds especially polysialic acids for instance of use as excipient, such as carriers, diluents, viscosity modifiers, moistureretention agents etc. Passivated polysialic acids may be therapeutically useful agents.