芳基的

In the reaction of NAE18 with nitrogen mustard aryl phosphorochloridate, 4-dimethylaminopyridine played critical catalytic action.

在合成工作中发现：在NAE18与氮芥芳基磷酰氯的反应过程中， 4-二甲氨基吡啶起着关键性的催化作用。

In the arylation reaction, the temperature was meliorated from -40℃ to -15℃, which could be easy controlled with ice-salt bath. Furthermore, the reaction could be carried out reposefully by adding the initiator.

其中在以2，5-二氟溴苯格氏试剂进行芳基化反应时，改进了反应条件，克服了文献使用的低温条件(-40℃)，简便了操作，同时通过加入合适的引发剂，使反应能够平稳进行。

In some preferred embodiments, the aryl-containing silicone compound is triphenyl- or diphenyl-based.

在一些优选的实施方案中，含芳基聚硅氧烷化合物是基于三苯基或二苯基的。

Thus, a stable, homogeneous melt solution is obtained from a solid mixture comprising 4,4'-biphenol(mp 282-284 DEG C) at a temperature of about 200 DEG C using either diphenyl carbonate or bis carbonate as the diaryl carbonate component.

因而，在约200℃的温度下使用碳酸二苯酯或碳酸二酯作为碳酸二芳基酯组分，由含有4，4′-二酚(mp282-284℃)的固体混合物获得稳定、均质熔体溶液。

Aim To study the relationship between the structures of a series of 4,4-diaryl-3-butenyl derivatives of nipecotic acid and guvacine and their inhibition activity of the γ-aminobutyric aciduptake.

目的研究3-哌啶甲酸和四氢烟酸的4，4-二芳基-3-丁烯衍生物结构和对γ-氨基丁酸摄取抑制活性之间的关系。

Effect of metal salts of substituted aromatic heterocyclic phosphate on the properties and morphology of isotactic polypropylene were studied.

研究了不同的取代芳基杂环磷酸金属盐类成核剂对等规聚丙烯性能及其微观形态的影响。

In the forth part, in the presence of chiral phosphoric acid, highly enantio-enriched (up to 98% ee)α-aryl glycine derivatives could be synthesized via asymmetric transfer hydrogenation of the α-aryl imino esters using Hantzsch ester as the hydrogen source.

第四部分工作中，利用Hantzsch酯作为氢源，高对映选择性地实现了手性磷酸催化芳基酮酸酯亚胺的不对称仿生氢化反应，以最高98％的对映选择性得到苯甘氨酸衍生物。

Objective To analyze the clinical characteristics of metachromatic leukodystrophy and evaluate the diagnostic values of computerized tomography, magnetic resonance imaging and measuring arysulfatase A activity in peripheral leukocytes.

目的 分析异染性脑白质营养不良的临床特征，评价头颅CT、MRI及白细胞芳基硫酸酯酶A对MLD的诊断价值。

The present invention discloses novel aryl oxazole compounds of Formula I, or pharmaceutically acceptable salts thereof, which have histamine-H3 receptor antagonist or inverse agonist activity, as well as methods for preparing and using such compounds.

本发明公开了式的新型芳基唑化合物或其药学可接受盐，其具有组胺H3受体拮抗剂或反向激动剂活性，本发明还公开了制备和使用这类化合物的方法。

A series of pyridazino[3,2-c]1,2,4-triazoles were synthesized from hydrazides and 3-aryl-6- chloro pyridazine s (3a～3d), which were obtained from substituted benzene and succinic anhydride by Friedel-Crafts reaction, cyclization with hydrazine hydrate, dehydrogenation and chloro-substitution.

以取代苯和丁二酸酐为起始原料，经Friedel-Crafts反应，肼合环，Br2/HOAc氧化脱氢后得到一系列1，6-二氢-3-芳基-6-哒嗪酮(2a～2d)。然后将2a～2d与PCl5在POCl3中回流，得到相应的氯代产物3a～3d，将其与酰肼作用，合环后得到一系列未见报道的哒嗪并[3，2-c]1，2，4-三唑类化合物。所有化合物结构均经元素分析，IR，1HNMR和MS谱得以证实，并对其波谱性质进行了讨论

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。