甲基

On the base of molecular structure design, the mechanism and technique of the synthesis of 2-(acryloyloxy ethyl trimethyl-ammonium chloride/2-acrylamido-2methylpropane sulfonic acid/acrylamide (AETMAC/AMPS/AM) amphoteric terpolymers by radical co-polymerization in aqueous solution was studied systematically.

依据分子结构设计理论，将2—丙烯酰氧乙基—三甲基氯化铵/2—丙烯酰胺基—2—甲基丙烷磺酸/丙烯酰胺(AETMAC/AMPS/AM)三种单体进行水溶液自由基共聚，合成了AP系列两性离子聚合物。

Seven such esters' intermediates were synthesized facilely from GCLE via Williamson Reaction in the presence of sodium bromide.

b、C-3位含硫甲基的头孢菌素衍生物：依威廉森合成法合成了7个C-3位含硫甲基的头孢菌素酯型衍生物。

Results and Discussion Flavin 2 was synthesized from 3,4-diaminobenzoic acid (3) and alloxane monohydrate (4) in good yield according to standard procedures (Scheme 1).9 The first step afforded flavin 5 in quantitative yield, in 1:1 ratio of the 7- and 8-hydroxycarbonyl regioisomers, and was subsequently methylated by methyl iodide to form flavin 6 in 86% yield, in a 3:2 ratio of the 7- and 8-regioisomers.

结果与讨论黄素二是合成3，4 -二氨基安息香的酸（ 3 ）和氧嘧啶水合物（ 4 ）在良好的收益率根据标准程序（计划1） 0.9的第一步，给予黄素五，在定量产量，在1：1的比例， 7 -8 -羟基羰基 regioisomers ，并随后甲基甲基碘形成黄素6月在86 ％的产量，在一个3：2的比例， 7 -和8 regioisomers 。

The two-dimensional gel electrophoresis (2D) analysis followed by fluorography clearly displayed proteins preferentially methylated in PRMT1-expressing cell lysates suggesting that they were potential PRMT1 substrates.

在此研究中我们建立大量表现PRMT1 (protein arginine methyltransfrase 1)的细胞模式，并成功地以二维胶体电泳展开甲基化蛋白，发现有无大量表现PRMT1的HEK293细胞，在一些蛋白质甲基化作用的情形有明显差异。

This is essentially a process where the polymer solution generally in dimethyl formamide is brought up to a temperature close to the boiling point of DMF and is then extruded under pressure through spinneretes.

其基本原理是处于二甲基甲酰胺中的聚合物溶液被加热到二甲基甲酰胺的沸点，然后在一定的压力下通过喷丝头。

This is essentially a process where the polymer solution generally in dimethyl formamide is brought up to a temperature close to the boil ing point of DMF and is then extruded under pressure through spinneretes.

其基本原理是处于二甲基甲酰胺中的聚合物溶液被加热到二甲基甲酰胺的沸点，然后在一定的压力下通过喷丝头。

In the aspect of the photocatalytic activity, we did some experiments and tests: TiO_2 hydrosol degradated methyl orange, TiO_2 powder degradated acetone, TiO_2 films degradated formol and TiO_2 films degradated methyl orange, confirming that the as-prepared sample possessed preferable photocatalytic activity.

在光催化活性方面，测试了TiO_2水溶胶降解甲基橙、TiO_2粉末降解丙酮、TiO_2薄膜降解甲醛和TiO_2薄膜降解甲基橙的实验，证实了所制备的试样具有较好的光催化活性。

In the presence of NaH and in DMF, the acyclic crown ethers 1a and 1b were synthesized by the reaction of di-or triethyleneglycol ditosylate and o-methoxymethoxybenzyl alcohol, which was obtained from salicylaldehyde via the protection of the hydroxyl group with chloromethyl methyl ether followed by the reduction of the formyl group with NaBH4. The hydrolysis of 1a and 1b with dilute hydrochloric acid provided the diphenolic type acyclic crown ethers 2a and 2b respectively in good yield.

将水杨醛与碱和氯甲基甲基醚反应，再经过NaBH4还原，即制得邻苯甲醇，然后将其在DMF中与NaH和二甘醇二对甲苯磺酸酯反应，得开链冠醚1a和1b.1a和1b经稀酸水解，即脱保护而分别生成新的酚型开链冠醚2a和2b。

Methylation assay showed that these sequences are heavily methylated in the Fritillaria ussuriensis.Maxim genome.

甲基化分析则表明这些序列在平贝母的基因组中均被高度甲基化。

The experiment results show that the functional transformation reaction of polymers can also be conducted via phase-transfer catalysis successfully.

当以十六烷基三甲基溴化铵为催化剂且以甲苯为有机相时，反应效果最佳，反应温度为50 ℃时，反应8 h氯甲基的转化率可达到87%。

My first article for Screen Power Magazine, which is to this day is the official magazine of Jackie Chan, was a DVD review of the Hong Kong actioner Gen-X Cops, starring Nicholas Tse and Daniel Wu.

我的第一篇文章为屏幕力量杂志，在对这天是Jackie Chan 正式杂志，是香港actioner Gen X 警察的DVD 回顾，担任主角Nicholas Tse 和丹尼尔吴。

His lips grazed hirs, Now what are you going to do?

他的唇使吃草了 hirs，现在你将要做什麼？