39 results about "Iodide sodium" patented technology

The invention can be summarized as follows. According to the present invention there is provided an attenuated, tumour-targeting bacterium comprising a heterologous nucleotide sequence encoding a protein permitting the accumulation of a radionuclide within the bacterium. The heterologous nucleotide sequence may encode a sodium iodide symporter protein. The invention also relates to the use of such bacteria and methods of treating diseases using the bacteria of the present invention.

The invention provides a novel route cefprozil compound, which simplifies the processes of 7-phenacetylamino-3-chloromethyl cephalosporanic acid anisyl acetate and triphenylphosphine phyllocaline Benedict's reagents, and activating reagents such as sodium iodide and the like do not need to be added, so the post treatment is simple and convenient, the production amplification can be realized more easily, and at the same time, para hydroxybenzene glycine is adopted to react with 2, 4, 6-trichlorophenol to generate a novel intermediate product of para hydroxybenzene glycine 2, 4, 6- phenyl estertrichlorine. The stability and the activity of the compound are mild, by-products produced in the reaction are fewer, the reaction yield is improved, and in addition, the obtained products have high purity and low isomeride content.

The invention discloses a preparation method of 1-bromoalkyne and 1-iodoalkyne. The preparation method comprises the following steps that terminal alkyne is adopted as a raw material, a chloramine salt and an iodine salt or a bromine salt is adopted as a halogenation system, and reaction is carried out in a solvent to synthesize a series of 1-bromoalkyne and 1-iodoalkyne type compounds. In the formula shown in the description, R in terminal alkyne is selected from chain-like alkyne, ring-shaped alkyne, olefin, ester group, cyanogroup, substituted phenyl group and heterocyclic arene; the chloramine salt is selected from one of chloramine B, chloramine T or o-chloramine T; the iodine salt is selected from one of sodium iodide, potassium iodide, ammonium iodide, lithium iodide or tetrabutylammonium iodide; the bromine salt is selected from one of sodium bromide, potassium bromide, lithium bromide, magnesium bromide, ammonium bromide or tetrabutylammonium bromide; the solvent is selected from one or is mixed by two of water, benzene, methylbenzene, 1, 4-dioxane, ethyl acetate, dimethyl sulfoxide, methanol, tetrahydrofuran, alcohol, isopropyl alcohol, N, N-dimethyl formamide, n-pentane,dichloromethane, petroleum ether, methyl tert-butyl ether, chloroform, n-hexane, carbon tetrachloride, n-butyl alcohol, 1,2-dichloroethane or acetonitrile. The preparation method disclosed by the invention has the beneficial effect that the application is wide.

The present invention relates to a metal halide lamp pill. The metal halide lamp pill contains iodides of scandium, sodium, thorium, thallium and indium, and it also contains iodides of lithium and dysprosium. The weight ratio of each component is: scandium iodide 70-90 10-20 parts of sodium iodide, 0.03-0.1 parts of thorium iodide, 0.05-0.15 parts of thallium iodide, 0.01-0.04 parts of indium iodide, 0.05-0.15 parts of lithium iodide, and 0.05-0.10 parts of dysprosium iodide. The invention changes the spectral components and proportions in the plasma discharge, increases the proportion of visible light, increases the tube wall load of the arc tube, and increases the luminous flux per unit power. The metal halide lamp prepared by using the metal halide lamp pellets of the invention has a quality exceeding the national standard, has a high light efficiency of more than 120Lm / w, and has a service life of more than 12000 hours, thereby achieving the purpose of energy saving and environmental protection.