体甲

Polyamic acidsolution were synthesized from pyromellitic dianhydrideand 4,4"-diaminodiphenylusing solution polycondensation with N,N"-dimethylacetamideas a solvent.

采用均苯四甲酸酐和4，4＇-二氨基二苯醚作为单体，合成聚酰亚胺的前驱体聚酰胺酸。

With the in-situ single-stage self-metallization protocol,surface-silvered polyimide film has been prepared using pyromellitic dianhydride/ 4,4\'-oxydianiline-based polyimide as the matrix and (1,1,1-trifluoro-2,4-pentadionato)silveras the silver precursor.

在原位一步自金属化法中，以均苯四甲酸酐/4，4\'-二胺基二苯醚基聚酰亚胺为基体，以三氟乙酰丙酮银作为银的母体制备出了表面金属化的聚酰亚胺银复合薄膜。

Methods The absorption of huperzine-A from small intestine was studied by utilizing in situ recirculate perfusion, with different concentration of huperzine-A.

采用大鼠在体回流方法研究了石杉碱甲在不同浓度和不同小肠区段下的吸收。

Compounds were identified by NMR etc, and they are veraflorizine 1, ebeinone 2, verticinone 3, isoverticine 4, trilinolein 5, phenanthrene 6, 2,5-dimethoxy-1,4-benzoquinone 7, tetradecane 8. All of them were isolated from this plant for the first time.

从安徽舒城县产舒城贝母的干燥鳞茎中分离得到了14个单体化合物，应用核磁共振等手段鉴定了8个化合物的结构，其中4个化合物为异甾体生物碱，4个为非生物碱，分别为：veraflorizine 1、鄂贝乙素2、浙贝乙素3、异浙贝甲素4、三亚麻油酸甘油酯5、菲6、2，5—二甲氧基苯醌(2，5-dimethoxy-1，4-benzoquinone)7和正十四烷8，这些化合物均为首次从该植物中分离得到。

Benzoylated phenyl a - and B - 2 - thio - D - fructofuranosides were synthesized and coupled with protected sucrose acceptor to synthesize a - D - fructofuranoside - linkage stereospecifically by employing NIS/AgOTf as catalysts.

在果糖的合成研究中，合成了四苯甲酰基苯基果糖硫苷，并首次将其用作糖苷化反应的给体，在NIS/AgOTf的促进之下，与乙酰化保护的蔗糖受体反应，从而以高产率立体专一地合成了α构型的呋喃果糖苷。

A new tripodal aryl amide type ligand,1,1,1-tris{[(2′-benzylaminoformyl)phenoxyl]methyl}-p-toluene sulfonyl aminomethane,and its Eu(NO_3)_3,Tb(NO_3)_3 complexes have been synthesized.

合成了一个新的三足芳香酰胺型有机配体1，1，1-三[(2′-甲酰苄胺苯氧)甲基]对甲苯磺酰氨基甲烷，及其Eu(NO3)3和Tb(NO3)3的配合物，并通过元素分析、红外光谱、核磁共振氢谱和摩尔电导率进行了表征。

At 60 ℃ the reaction of 1-O-alkyl-2-O-acetyl-3-O-trityl glycerol with iodine/methanol system removed trityl and acetyl and gave 1-alkyl glycerol. But at r.t. the reaction only removed trityl and gave two isomers 1-O-alkyl-2-O-acetyl glycerol and 1-O-alkyl-3-O-acetyl glycerol.

1-烷氧基-2乙酰氧基-3-三苯甲氧基甘油醚与碘/甲醇体系反应，在60 ℃时，同时发生了脱三苯甲基及乙酰基，在室温下，仅脱三苯甲基，但乙酰基在反应过程中发生了部分转移，产生了两个异构体。

Results AE from CM had vasodilating effect on the contracti on of mesentery blood capillary in guinea pigs and the contraction of rat thoracic aortic ring induced by l0μmol/L phenylephrine, even under the condition of pre-treating with glibenclamide (1μmol/L) or propranolol (3μmol/L). When the endothelium of the rat thoracic aortic ring was removed, AE from CM had not vasodilating effect hut constrictive effect. AE from CM could also increase the contents of NO, NOS and cNOS in the aortic tissue and had no obvious effect on the NO content in plasma and iNOS in aortic tissue of rats.

结果 桑白皮丙酮提取物有抑制去甲肾上腺素收缩豚鼠肠系膜微血管的作用，抑制苯肾上腺素(10μmol/L)收缩离体大鼠胸主动脉环的作用，预加优降糖或普蔡洛尔(3μmol／L)后仍然有松弛作用；大鼠胸主动脉环去内皮后药物无松弛作用，反而起收缩作用；显著升高血管的NO和NOS、cNOS含量，对大鼠血浆的NO和血管iNOS的含量影响不大。

The chromosomally located cephalosporinase and carbapenem-hydrolyzing beta-lactamase NmcA were inducible by cefoxitin and meropenem in E. cloacae NOR-1, and both were stably overproduced in the ceftazidime-resistant mutant.

在E阴沟杆菌NOR-1中，位于头孢菌素酶和氨基甲酰水解的β-内酰胺酶NmcA中的染色体可以被头孢西丁和美罗培南诱发，而且两者在头孢三嗪噻肟抗体突变体中都是稳定的大量产生的。

Methods The effects of three vasodilators on the potassium chloride, norepinephrine concentration-response curves and precontracted rabbit aorta were investigated.

以离体兔主动脉条观察该三种血管舒张药对氯化钾、去甲肾上腺素量效曲线及预收缩血管的影响。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了