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A series of lanthanide complexes (Ln = Er, Nd, Yb) with infrared emission properties were designed and synthesized by using different anionic ligands [1 -phenyl-3-methyl-4-(4-tertbutylbenzoyl)-5-pyrazolone and l-phenyl-3-methyl-4--5-pyrazolone and 2-naphtoyl trifluoroacetone] and netural ligands (2,2-dipyridine, phenanthroline, triphenylphosphine oxide and water). Three crystal structures of these complexes were obtained and structure studied, and the properties of photoluminescence and fluorescent lifetime were studied in detail.

我们通过选用不同的第一配体[1-苯基-3-甲基-4-(4-异丁酰基)-5-吡酮,1-苯基-3-甲基-4-(4-叔丁基苯甲酰基)-5-吡酮和2-萘基三氟乙酰丙酮]和第二配体(2,2-联吡啶,邻菲啰啉,三苯基氧膦)合成了16个稀土红外配合物(Ln=Er,Nd,Yb),获得了其中三个配合物的单晶结构,研究了这些稀土红外配合物的光致发光和荧光寿命等性质。

Methods The fluconazole, amphotericin B and itraconazole susceptibility test were performed by Rosco disk diffusion method and NCCLS M27A broth macrodilution method with 110 yeastlike fungus strains isolated from clinical elderly patients specimens. 3 standard strains were used as the quality control.

应用 Rosco 纸片扩散法和美国临床实验室标准化委员会M27A宏量肉汤稀释法测定临床分离的110株老年病例中不同酵母样真菌菌株对氟康、两性霉素B、伊曲康的药敏状况,并以3株酵母菌株作质量控制。

Objective To modify the synthesis of Benzhydryl 2α- methyl - 2β- [ ( 1,2,3 -triazol - 1 - yl)- methyl ] penicillanate - 1,1 - dioxide, the key intermediate of β- lactamase in-hibitor tazobactam.

目的 改进β-内酰胺酶抑制剂泰巴坦关键中间体2α-甲基-2β[(1,2,3-三-1-基)-甲基]青霉烷酸砜二苯甲酯的合成。

The diblock copolymer of styrene and chloromethyl-4-vinyl-benzene was obtained by means of reverse addition fragmentation chain transfer reaction living free radical polymerization. The chloromethyl groups in PS-bPCVB were transformed into azidomethyl groups, and then into 1,2,3-triazol groups via click chemistry. The diblobk copolymer containing 1,2,3-triazol groups was thus obtained. The results from NMR spectra suggested a complete transformation from chloromethyl groups to triazol groups.

通过RAFT活自由基聚合方法制备聚(苯乙烯-b-对氯亚甲基苯乙烯)二嵌段共聚物,其中的氯亚甲基侧基经叠氮化反应后与丙炔醇进行点击反应,最终获得了含有1,2,3-三氮官能团的聚苯乙烯二嵌段共聚物,核磁共振谱表征结果证明,PS-b-PCVB中的氯亚甲基完全转变成了1,2,3-三氮基团。

The diblock copolymer of styrene and chloromethyl-4-vinyl-benzene was obtained by means of reverse addition fragmentation chain transfer reaction living free radical polymerization. The chloromethyl groups in PS-b-PCVB were transformed into azidomethyl groups, and then into 1,2,3-triazol groups via click chemistry. The diblobk copolymer containing 1,2,3-triazol groups was thus obtained. The results from NMR spectra suggested a complete transformation from chloromethyl groups to triazol groups.

通过可逆加成-断裂链转移聚合活性自由基聚合方法制备了聚(苯乙烯-b-对氯亚甲基苯乙烯)二嵌段共聚物,其中的氯亚甲基侧基经叠氮化反应后与丙炔醇进行点击反应,最终得到了含有1,2,3-三氮官能团的聚苯乙烯二嵌段共聚物,核磁共振谱表征结果证明,PS-b-PCVB中的氯亚甲基完全转变成了1,2,3-三氮基团。

In addition, we found that 4-phenyl-l,2,4-triazolinium N-ylides reacted withvarious electron-deficient olefins to afford pyrrole derivatives in good yields via 1,3-dipolar cycloaddition oxidative ring fission, In some cases, tetrahydropyrrolo[1,2-b]triazole and pyrrolo[1,2-b]triazole, which are stable and are not aromatized orcleaved in the reaction conditions, could be isolated, This is a facile and novel route forthe synthesis of pyrrole derivatives.

此外,本文研究了五员三氮杂环化合物4-苯基1,2,4-三氮的N-叶立德,发现在氧化剂存在下与缺电子烯烃发生1,3-偶极环加成反应生成的吡咯并[1,2-b]三氮,在大多数情况下开环生成吡咯衍生物,反应条件温和,收率良好,是合成吡咯衍生物的一个新的途径。

The yield was 47.3%. A series of21 azo-1,3,4-thiadiazole compounds were synthesized by diazotizing of2-amino-5-alkyl-1,3,4-thiadiazole with nitrosylsulfuric acid, then couplingwith phenol, substituted phenol or naphthol. The yields were 19.6~58.8%.16 of them were new compounds.

制得的2-氨基-5-烃基-1,3,4-噻二用亚硝酰硫酸进行重氮化,再与苯酚、取代苯酚或萘酚发生偶合反应合成了21个偶氮-1,3,4-噻二类化合物,其中16个为新化合物,收率为19.6~58.8%。

Methods: 2ethyl aniline was used as starting material of the synthesis and was processed by acetic anhydride acylation, strong nitric acid nitraction at low temperature, and desacyl synthesis to produce 2ethyl5nitro aniline. The product was then synthesized to 3methyl6nitro1Hindazole by using ringclosing reaction in the presence of NaNO2, and then ethylated to obtain 2,3diethyl6 nitro2Hindazole. The latter compound was then reduced by SnCl2/Hcl to get target compound 2,3diethyl6nitro2Hindazole.

以2乙基苯胺为原料经醋酐酰化、浓硝酸低温硝化及去酰基保护合成2乙基5硝基苯胺,后用亚硝酸钠关环得3甲基6硝基1H吲,经硫酸二甲酯甲基化得2,3二甲基6硝基2H吲,最后用氯化亚锡将其还原得到目标产物,通过1H NMR确定结构与目标产物一致。

Methods: 2-ethyl aniline was used as starting material of the synthesis and was processed by acetic anhydride acylation, strong nitric acid nitraction at low temperature, and desacyl synthesis to produce 2-ethyl-5-nitro aniline. The product was then synthesized to 3-methyl-6-nitro-lH-indazole by using ring-closing reaction in the presence of NaNO2, and then ethylated to obtain 2, 3-diethyl-6- nitro-2H-indazole. The latter compound was then reduced by SnC12/Hcl to get target compound 2, 3-diethyl-6-nitro-2H-indazole.

以2-乙基苯胺为原料经醋酐酰化、浓硝酸低温硝化及去酰基保护合成2-乙基-5-硝基苯胺,后用亚硝酸钠关环得3-甲基-6-硝基-1H-吲,经硫酸二甲酯甲基化得2,3-二甲基-6-硝基-2H-吲,最后用氯化亚锡将其还原得到目标产物,通过1HNMR确定结构与目标产物一致。

The in vitro drug-release tests of the microcapsules were studied and the inhibition toward Staphylococcus, Hay Bacillus and Escherichia coli by their extravasates respectively were also performed via pervasion method.

方法是将头孢啉钠溶于海藻酸钠的PBS溶液,用正己烷/Span-85乳化形成微乳溶液,然后用CaCl2单凝聚固化得头孢啉钠的微胶囊;利用扩散法研究了该微胶囊渗出液对金黄色葡萄球菌、枯草杆菌和大肠杆菌的抑制作用。

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