选择性的

Under the optimized conditions, in-situ-generated N,N -dioxide from the corresponding amide (10 mol%) and m-CPBA (20 mol%) retained the same asymmetric catalytic activity and enantioselectivity, and most of the aromatic,α,β-unsaturated, heterocyclic, aliphatic and steric hindrance ketones could be converted into the corresponding cyanohydrin trimethylsilyl ethers in up to 99% yield and 93% ee.

底物扩展证明，该有机小分子催化体系对芳香酮、杂芳香酮、脂肪酮、位阻酮以及α，β-不饱和酮都具有优良的手性诱导能力，收率高达99％，对映选择性达93％ee。

Under the suitable conditions of reaction temperature 170℃, 1.5 MPa air and reaction time 6 h, the conversion of cyclohexane and the total selectivity of cyclohexanone and cyclohexanol were 5.39% and 88.7% respectively.

在反应温度170℃，空气压力1.5 MPa，反应时间6 h的优化条件下，环己烷转化率与酮醇总选择性分别为5.39%和88.7%。

Cyclohexane conversion of 33.7%,selectivity to cyclohexanone and cyclohexanol of 97.2%,cyclohexan...

在70℃和n(C6H12)∶n(H2O2)=1∶2条件下，采用两次加入过氧化氢的方式，环己烷转化率为33.7%，酮醇总选择性97.2%，n∶n=1.99，过氧化氢利用率37.1%。

It was found that manganese porphyrin had the highest activity, and a maximum 15.4% of cyclohexane conversion and 93.9% selectivity of cyclohexanone and cyclohexanol could be obtained under the suitable conditions.

结果发现，锰卟啉催化活性最好，在适宜反应条件下，环己烷转化率高达15.4%，环己酮和环己醇的总选择性约为93.9%。

Cyclohexanone yield of 85% and selectivity to cyclohexanone of nearly 100% were attained over the catalyst prepared under optimum condition.

在优化条件下制得的催化剂用於环己醇脱氢时，环己酮产品收率达85%，选择性近100%。

The easy recovery of chiral auxiliary, good selectivity and high yield of this reaction make it a potential method in the synthesis of multifunctional optically active cyclopropane derivatives.

手性硫叶立德控制的高对映选择性合成多取代烯基环丙烷衍生物。

Methods: We used virus proliferation assay cell viability assay to evaluate the proliferation and cytolysis selectivity of CNHK500. And we used Western-blot to confirm the expression of adenovirus CNHK500 E1A and E1B in cancer and normal cells.

行病毒增殖实验和细胞生长抑制实验，验证CNHK500选择性复制和杀伤能力；Western blot检测腺病毒E1A和E1B在细胞中的表达。

Antitumor efficacy of replication-competent adenovirus CNHK500 in vivo was associated with increased dosage of CNHK500. Conclusions: The results prove that CNHK500 has highly proliferation selectivity and potent cytolysis effect on breast cancer.

肿瘤选择性增殖腺病毒CNHK500可选择性在端粒酶阳性的乳腺癌细胞中复制，并产生体内外杀伤作用。

Objective: To determine the potency of QN-2013, a derivative of quinoxaline 1,4-N-oxide, as a hypoxia-selective cytotoxin or a radiosensitizer.

目的：检验和评价喹喔啉双氮氧化物衍生物QN-2013的选择性乏氧细胞毒性和放射增敏作用。

The most common RNA editing is mediated by ADAR(Adenosine deaminases that act on RNA),which could change adenosines to inosines via deamination reaction.

基因复制、RNA编辑与选择性剪切是一个基因产生多种蛋白质的重要途径。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷