未确证的

This has made many bristle, especially the families of the 1,100 victims who have never been identified.

对此，有很多人心中不快，尤其是1100名至今未被确证的遇难者眷属。

Thus, the method can only be used to the cyclization of N~4-aryl-4,5,6-triaminopyrimidine with oxalic acid.

在合成各类化合物的过程中，共得到未见文献报道的新型中间体50多个，并根据其结构特征，用相应的光谱对其结构进行确证。

Now faith is the substantiation of things hoped for, the conviction of things not seen.

11：1 信就是所望之事的质实，是未见之事的确证。

Jake confirmed that he had personally seen some of the classified maps showing dramatically altered future coastlines, and also confirmed the possibility of a very advanced high-speed 'shuttle-like' system that connected many places, like the US and Australia under the Pacific Ocean - a longstanding but always uncorroborated rumor within the UFO community that had acquired semi-mythological status since the startling reports of John Lear and William Cooper in the late 1980s.

杰克证实，他曾亲自见过一些机密地图，上面显示了引人注目的、改变了的未来海岸线，同时他确证，未来可能会出现非常先进的高速运转的"梭子般的"（shuttle-like）系统，来连接许多地方，就像美国和太平洋下面的澳洲-这是一个长期存在的，但却总是未被证实的、流传在UFO社区里的传闻

Methods: According to the mechanism of cough reflex, the c-fibres's role in the respiratory system, and the principle of isosterism. Here, a peripheral antitussive LD was regarded as a lead compound. Amino functional groups, as substituents at the 1-hydroxy group of the racemate of LD, were introduced into the structure of the molecule. These novel compounds were confirmed by 1H-NMR, MS spectrum. Their antitussive activities were studied on mice in sequential method. The EDT50, the stimulating time that caused cough by NH3 on half of mice, were measured. Then could caculated the ratio R between the EDT50 of the treated groups and control group.

根据咳嗽反射的机制及C-纤维在呼吸系统的作用，以外周镇咳药左羟丙哌嗪为先导化合物，依据电子等排原理，在其结构中引入氨基以取代羟丙哌嗪分子中1位的羟基，设计一系列未见报道的化合物（01-15）；并采用了一条适宜的路线进行合成，通过1H-NMR、MS确证结构；采用&序贯法&实验进行新化合物的镇咳活性研究，动物模型采用氨水引咳小鼠，获得引致半数小鼠咳嗽的氨水刺激时间（EDT50）及给药组EDT50与对照组的比值R。

Fourteen new pyrethroids containing isoxazole were designed and synthesized from 4-isopropyl-3-substituted phenyl-5-hydroxyl isoxazoles as major material, whose structures were also characterized by IR, 1H NMR and elemental analysis.

以4-异丙基-3-取代苯基-5-羟基异噁唑和3-苯氧基苄基溴为原料，三乙胺为缚酸剂，设计并合成了14个未见报道的4-异丙基-3-取代苯基-5-异噁唑基-(3'-苯氧基)苄基醚。通过红外光谱、核磁共振、元素分析等手段，确证了它们的化学结构。

Four novel methoxycarbonylindole-3-carboxaldehyde phenylhydrazone s were synthesized by the condensation reaction between methoxycarbonylindole-3-carboxaldehyde and phenylhydrazine in acidic condition.

甲氧羰基吲哚-3-甲醛与苯肼在酸性条件下通过缩合反应合成了4个未见文献报道的新化合物甲氧羰基吲哚-3-甲醛苯腙，其结构经1HNMR，IR和MS确证。

Four novel methoxycarbonylindole-3-carboxaldehyde phenylhydrazones were synthesized by the condensation reaction between methoxycarbonylindole-3-carboxaldehyde and phenylhydrazine in acidic condition.

甲氧羰基吲哚-3-甲醛与苯肼在酸性条件下通过缩合反应合成了4个未见文献报道的新化合物甲氧羰基吲哚-3-甲醛苯腙，其结构经1HNMR，IR和MS确证。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。