Methyluracil and 5-nitro-6-methyluracil react with variable molar quantities of benzoyl chloride in acetonitrile-pyridine at room temperature to give 1-N, 3-N-dibenzoyl-6- methyluracil 3b and 1-N-benzoyl-5-nitro-6-met...Methyluracil and 5-nitro-6-methyluracil react with variable molar quantities of benzoyl chloride in acetonitrile-pyridine at room temperature to give 1-N, 3-N-dibenzoyl-6- methyluracil 3b and 1-N-benzoyl-5-nitro-6-methyluracil 4b. The reactive rates of debenzoylation of 3b and 4b were investigated.展开更多
N^1,N^1-Dimethylbiguanide hydrochloride （HDMBG,HCl） was introduced as an oral glucose-lowering agent to treat non-insulin dependent diabetes mellitus. In this paper, two solid complexes-trichlorotris（N^5-benzoyl-N^...N^1,N^1-Dimethylbiguanide hydrochloride （HDMBG,HCl） was introduced as an oral glucose-lowering agent to treat non-insulin dependent diabetes mellitus. In this paper, two solid complexes-trichlorotris（N^5-benzoyl-N^1,N^1-dimethylbiguanidato）neodymium, [Nd（BDMBG）3Cl3）, and chlorobis-[N^5-（o-carboxybenzoyl）-N^1,N^1- dimethylbiguanidato]neodymium, [Nd（CDMBG）2Cl], were synthesized and characterized by elemental analyses, fluorescence spectra, IR, UV, DG, DTA etc. Biological testings were conducted by diabetic rats and ESR. The results showed that both the antidiabetic activity and the inhibition rates （Ih） to superoxide anion free radical （O2） on lipid are in the order as follows： Nd（SDMBG）3 [tris（N^5-salicyloyl-N^1,N^1-dimethylbiguanidato）neodymium]〉 Nd（CDMBG）2Cl≈HDMBG·HCl 〉Nd（BDMBG）3Cl3. It was concluded that different substituents at the o-position of the benzoyl group may affect these two kinds of behaviour to a great extent.展开更多
基金We thank the National Natural Science Foundation of China(NO．20172007)for financial support
文摘Methyluracil and 5-nitro-6-methyluracil react with variable molar quantities of benzoyl chloride in acetonitrile-pyridine at room temperature to give 1-N, 3-N-dibenzoyl-6- methyluracil 3b and 1-N-benzoyl-5-nitro-6-methyluracil 4b. The reactive rates of debenzoylation of 3b and 4b were investigated.
基金Project supported by the National Natural Science Foundation of China （No. 20171019）.
文摘N^1,N^1-Dimethylbiguanide hydrochloride （HDMBG,HCl） was introduced as an oral glucose-lowering agent to treat non-insulin dependent diabetes mellitus. In this paper, two solid complexes-trichlorotris（N^5-benzoyl-N^1,N^1-dimethylbiguanidato）neodymium, [Nd（BDMBG）3Cl3）, and chlorobis-[N^5-（o-carboxybenzoyl）-N^1,N^1- dimethylbiguanidato]neodymium, [Nd（CDMBG）2Cl], were synthesized and characterized by elemental analyses, fluorescence spectra, IR, UV, DG, DTA etc. Biological testings were conducted by diabetic rats and ESR. The results showed that both the antidiabetic activity and the inhibition rates （Ih） to superoxide anion free radical （O2） on lipid are in the order as follows： Nd（SDMBG）3 [tris（N^5-salicyloyl-N^1,N^1-dimethylbiguanidato）neodymium]〉 Nd（CDMBG）2Cl≈HDMBG·HCl 〉Nd（BDMBG）3Cl3. It was concluded that different substituents at the o-position of the benzoyl group may affect these two kinds of behaviour to a great extent.
