نتایج جستجو برای: 4 diamino 7 methylbenzogpteridine 5
تعداد نتایج: 2360425 فیلتر نتایج به سال:
In the title Schiff base, C(17)H(14)Cl(4)N(2), the atoms of one of the 2,6-dichloro-benzyl-idene units and the central 1,2-diamino-propane grouping are disordered over two sets of sites in a 0.8838 (12):0.1162 (12) ratio. The dihedral angles between the ordered benzene ring and its disordered counterparts are 57.41 (12) and 54.8 (6)° for the major and minor disorder components, respectively. Th...
The title compound, [Cu(2)(C(31)H(30)Cl(2)N(4)O(4))Cl(2)]·CH(3)CN, was synthesized by cyclo-condensation between N,N'-bis-(2-fur-yl)-N,N'-bis-(3-formyl-5-chloro-salicylaldehyde)ethyl-enediamine and 1,3-diamino-propane in the presence of Cu(II) ions. It is an unsymmetrical dinuclear Cu(II) complex. The coordination geometry for each Cu(II) atom can be discribed as distorted square-pyramidal. The...
1. The liver of the dog in which necrosis has been produced by injection of haematoxic immune sera is characterized in the less marked forms by a storing up of nitrogen in the persisting living cells, while in the diffuse forms the total nitrogen content is but slightly above the normal. This last is to be explained by the great diminution in persisting liver substance which limits the power of...
the discovery of the antifertility activity of gossypol led scientists and researchers to the development of compounds with antifertility activity that can be used as male contraceptives. these studies resulted in discovery of the antifertility activity of several classes of compounds which have been reported in the literature. this article deals with the synthesis of four new analogues of pyri...
Two genes of Saccharomyces cerevisiae, NTG1 and NTG2, encode proteins with a significant sequence homology to the endonuclease III of Escherichia coli. The Ntg1 and Ntg2 proteins were overexpressed in E.coli and purified to apparent homogeneity. The substrate specificity of Ntg1 and Ntg2 proteins for modified bases in oxidatively damaged DNA was investigated using gas chromatography/isotope-dil...
1.1 Materials: Diamino-polyethylene glycol with MW 2000 Da (PEG2000) was purchased from Rapp Polymer. (3-Glycidoxypropyl)trimethoxysilane (GOPTS) was purchased from Fluka. EZ-Link NHSBiotin was purchased from Thermo Scientific. Hydrogen peroxide (30% solution), Acetone, Dichloromethane and N, N-Dimethylformamide were purchased from Merck. Imidazole and 2-[4-(2hydroxyethyl) piperazin-1-yl]ethane...
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