用途
硅烷衍生试剂常用于气相色谱分析中。这类试剂通过硅烷基取代羟基、羧基、巯基、氨基及亚氨基的活性氢进行衍生反应,产物为硅醚或硅酯。几乎所有含有这些活性氢的化合物都能与硅烷化试剂发生衍生反应,其反应活性顺序依次是醇 > 酚 > 羧酸 > 胺 > 酰胺。
用途
高效硅烷化试剂适用于非甾体类消炎止痛药的衍生化处理。这类试剂特别适合于氨基、羧基、indolalkylamine、5-羟色胺和吲哚胺的衍生反应。
Long-term antibiotic treatment is required to cure tuberculosis. Targeted antibiotics should improve the efficacy of treatment by concentrating the drugs close to the bacteria. The aim of the present study was to synthesize targeted conjugates. For this purpose, we used mannose as a homing device to direct norfloxacin into macrophages. Dextran was used as the polymer bearing both mannose and norfloxacin. Using different peptide spacer arms to link norfloxacin to dextran, we demonstrated that norfloxacin acts as an antibiotic only when it is released in its native form. Also, targeting by using mannose as a homing device is required to achieve antimycobacterial activity in vivo. Thus, norfloxacin, which is inactive against mycobacteria in its native form in vivo, can be transformed into an active drug by targeting.