戊基

The preparation and characterization of mono-and bispenta-phenylcyclopentadienyl lutetium chlorides were reported.

本文介绍高空间位阻的五苯基环戊二烯基氯化镥的合成及鉴定。

Therefore, studies and applications of the ring-opening reaction of 1, 3-dithiolancycolpentyl moiety should be a valuable research project.

因此，α-羰基环二硫缩烯酮的1， 3-二硫戊环的开环反应及其在合成中的应用研究是一重要的研究课题。

But the ring fragmentation of 1, 3-dithiolancycolpentyl moiety of ketene-acetals was rarely reported.

然而，对其中的环烷硫基部分——1， 3-二硫戊环的研究甚少。

AIM: To establish a method to determine 2,6Dimethyl4(3nitropheny1)1,4 dihydropyridine3carboxylic acid dimethylester5carboxylic acid pentyl ester (MN9202) in biological medium by reversephase highperformance liquid chromatography.

目的：建立生物介质中1，4二氢2，6二甲基4(3硝基苯基)3，5吡啶二甲酸甲戊酯（MN9202）的高效液相色谱检测方法。

We examined the effects and mechanisms of methyl pentyl 1,4-dihydro-2,6-dimethyl-4-(3-notrophenyl)-3,5-pyridinedicarboxylate (Mn9202), a novel DHPs calcium antagonist and lacidipine on the 5-HT2B receptor in cultured rat stomach fundus smooth muscle cells.

本研究以富含5-HT_(2B)受体的大鼠胃底平滑肌细胞为模板，观察了二氢吡啶类钙拮抗剂2，6-二甲基-4-（3-硝基苯基）-1，4-二氢-3，5-吡啶二羧酸-3-甲酯-5-正戊酯（Mn9202）、拉西地平对 5-HT_(2B)受体功能的影响，并对其影响机制进行了较为深入的研究。

PETN, or pentaerythritol tetranitrate, was the explosive material found on the suspect.

PETN即四硝基季戊四醇，是在这名嫌疑人身上发现的爆炸材料。

Studies on the reactions of isomerized products of butaduene and isoprene iron complexes with triphenyl phosphine and triphenyl phosphite

丁二烯-和异戊二烯二羰基铁配合物的异构化产物与三苯膦和亚磷酸三苯酯的反应研究

Based on the experimental results,di-butyl-peroxide,di-cyclopentadiene and propyl nitrate are found to be sensitive to the change of heating temperature and heating time,and their thermal decomposed products can be detected easily.

实验表明，在343～473 K温度范围内，过氧化二叔丁基、双环戊二烯和硝酸丙酯对受热温度和受热时间的变化较为敏感，热分解现象明显，热分解产物易于检测。

The biosynthesis of coenzyme Q10 in microorganism has two pathways: the quinoid nucleus biosynthesis and the isoprenoid side chain biosynthesis.

辅酶Q10在微生物体内的合成分为芳香环的合成和异戊烯基侧链的合成。

In the buffer solutions with different pH values the swelling characteristics of hydrogels based on SBCS prepared by cross-linking with glutaraldehyde were studied.

以戊二醛为交联剂制备了 N -(2-磺酸基苯甲基)壳聚糖水凝胶，考察了凝胶在不同pH值缓冲溶液中的溶胀行为。

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％。