The present invention relates to small molecule compounds and their use in the treatment of bacterial infections, in particular Tuberculosis.
本发明涉及小分子化合物及其在治疗细菌感染,特别是结核病方面的用途。
Synthesis of pyridine-containing α-hydrazino phosphonates by two-component catalytic procedure
作者:E. D. Matveeva、T. A. Podrugina、I. N. Kolesnikova、N. S. Zefirov
DOI:10.1007/s11172-011-0042-x
日期:2011.2
Pyridine-containing α-hydrazino phosphonates were synthesized in high yields by reaction of hydrazones of pyridine series with diethyl phosphite in the presence of [tetra(tert-butyl)-phthalocyanine]aluminum chloride as a catalyst.
through a versatile sol–gel combustion method from hydrazide based hypercoordinated silicon complexes derived from the reaction of silicontetrachloride with O-silylated hydrazide derivatives. The complexes were characterized by 1H, 13C, 29Si NMR and ESI-mass spectrometric techniques. A refined morphology was observed in the product after sintering i.e. from spherical to rod shaped nanoparticles. The
二氧化硅纳米粒子是通过一种通用的溶胶-凝胶燃烧方法,从四氯化硅与O-甲硅烷基化的酰肼衍生物的反应衍生出的基于酰肼的超配位硅络合物合成的。通过1 H,13 C,29 Si NMR和ESI-质谱技术对络合物进行表征。烧结后在产品中观察到细化的形态,即从球形到棒状的纳米粒子。二氧化硅的粉末X射线衍射图和TEM图像显示了二氧化硅纳米颗粒的形成。红外光谱显示出Si–O键,DLS研究表明,在1000°C烧结之前,材料的粒径分布在20至100 nm之间;在烧结之后,粒径分布在70–120 nm之间。分解的凝胶的TEM图像表明形成了结晶硅胶棒。这项工作还证明了纳米级二氧化硅颗粒对抗菌活性(DIZ,MIC和MBC)的影响,即与传统的TEOS(sol-gel)方法相比,超配位硅络合物衍生的纳米棒显示出更好的活性。通过氧化应激产生活性氧(ROS)的实验证明了纳米二氧化硅颗粒的毒性。