化合物

With the same zirconium concentration,the absorbance of zirconyl oxyhalide solution (λ=664nm)prepared in HCl was larger than that from pure zirconyl oxyhalide solution.

发现对于相同锆浓度的溶液，高酸度的锆贮备溶液中的锆与偶氮胂Ⅲ形成的化合物的吸光度(λ=664nm)要大干仅由氧氯化锆配制的锆贮备溶液中的锆与偶氮胂Ⅲ形成的化合物的吸光度。

Latest research indicates that,if eating a great deal of undone eggs for a long time,antibiotin protein in undone egg white can integrate with biotin internal the body as a sort of steady compound,making biotin can't be absorbed by intestinal wall and leading to energy ennui,muscle ache,hair falling off,skin inflamation,appetite letdown,weight droping and so on.When eggs pass through the intestinal tract,it's easy to zymolysis and transformation,sometimes it may appear nitroso compound,which has the function of causing cancer.

最新研究表明，若长期大量吃生鸡蛋，生鸡蛋清内的抗生物素蛋白与体内生物素结合成一种稳定的化合物，使生物素不能被肠壁吸收，则可导致精神倦怠、肌肉酸痛、毛发脱落、皮肤发炎、食欲减退、体重下降等；生鸡蛋经过肠道时，容易发酵变质，有时可能产生亚硝基化合物。

The results of bioassay indicate that these compounds are of high acaricidal, fungicidal and herbicidal activitives.

化合物的生物活性测定结果表明，这是一类具有高效杀螨、杀菌及除草活性的有机锡化合物。

These chemical shifts in the aromatic region of the resulting nucleophilic adduct 2-F were consistent with the counterparts of 9,10-dihydro-9-methoxy-9-(4-methoxyphenyl)-10-methylacridine, 17b which was proven to be the adduct of the 9-phenyl acridinium salt formed with an excess of MeOH (Figure S7 in Supporting Information).

在最终的亲核加成化合物2-F的芳香族区中的这些化学位移与9，10二氢-9-甲氧基-9-(4甲氧基苯基)-10-甲基吖啶的对应物是一致的，17b 这被证明是与过量的MeOH形成的9-苯基吖啶盐的加成化合物（支持信息中的图S7）。

Acridone 1 reacted with benzyl chlorides 2 in NaH/DMF/KI to give 10-benzyl-9-acridones 3 in high yields. Subsequent reduction of 3 with NaBH4 gave 10-benzy1-9,10-dihydroacridine derivatives 4 with yields of 88%～96%.

吖啶酮1与氯化苄及其衍生物2在氢化钠/N，N-二甲基甲酰胺/碘化钾中反应高产率生成10-苄基吖啶酮类化合物3； 3经硼氢化钠氢化还原生成10-苄基-9，10-二氢吖啶类化合物4，产率88%～96%。

Results Six compounds were isolated from the ethanol extracts of Acrostichum aureurm,and their structures were elucidated as ponasterone A(1),pterosterone(2),kaempferol(3),quercetin(4),4-(3,4-dihydroxyphenyl)-2-butanone(5),and daucosterol(6),respectively.

结果从卤蕨乙醇提取物中分离得到6个化合物，分别鉴定为ponasterone A(1)、pterosterone(2)、山奈酚(3)、槲皮素(4)、4-(3，4-二羟基苯基)-2-丁酮(5)、胡萝卜苷(6)。结论6个化合物均为首次从该植物中分离得到。

ABSTRACT To study the antibacterial constituents from the fermentation broth of endophytic fungus Penicillium sp. 0935030 from mangrove plant Acrostichum aureurm. The separation procedure was guided by antibacterial bioassay. Seven compounds were isolated and purified by column chromatography, and their structures were identified as cyclo (1), cyclo (2), 1(2Furanyl)1,2ethanediol (3),(3β,4β,22β)olean12ene3,22,23triol (4), mannitol (5), uridine (6), and liquiritigenin (7) by physicochemical and spectral data.

为研究红树林植物卤蕨内生真菌Penicillium sp.0935030发酵物中的抗菌活性成分，采用活性追踪的方法，用多种色谱技术对化合物进行分离纯化，通过理化性质和光谱数据鉴定出7个化合物，分别为：环(1)，环(2)，1呋喃基1，2乙二醇(3)，(3β，4β，22β)12烯3，22，23三羟基齐墩果烷(4)，甘露醇(5)，尿苷(6)和甘草素(7)。

The tested phenolic compounds possess potent anti-candidal activities, and some of them work synergistically or additively with fluconazole.

结论所实验的酚类化合物对白色念珠菌具有较强的抗真菌活性，其中部分活性化合物与氟康唑呈现出协同或相加的联合抗真菌作用。

5 H to Aedes albopictus respectively, while 10% and 20% of compound 31 held repellent activity as long as 4～5 h and 5～6 h to Anopheles sinensis respectively.

结果10%和20%的23号化合物对白纹伊蚊有2.5～3h和4.5～5h的驱避活性，10%和20%的31号化合物对中华按蚊则有4～5h和5～6h的驱避活性。

The HEED, XRD, and XPS results confirmed the forming of intermetallic compounds between silver and rare earth. As far as silver and lanthanum be concerned, the format of intermetallic compound is AgLa.

由此，本文首次提出了稀土元素在稀土金属间化合物中的能量传递模型，认为稀土与银金属间化合物的4f能级位于费米能级附近下方，部分局域化且与导带部分耦合。4f能级与导带能级之间的电子跃迁是稀土元素在Ag-BaO薄膜中传递能量的方式，也是光电发射增强效应的来源，而4f电子的光吸收截面随入射光子能量的增加而增大的特点则是&蓝强&现象的原因。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。