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intermediates相关的网络例句

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4 Repackaging, Relabeling, and Holding of APIs and Intermediates

17.4原料药和中间体的重新包装,重新贴签和待检

Analysis of the treated aqueous solution was conducted with GC-MS,and the main intermediates during phenol degradation were isobutyric acid,malonic acid,benzoquinone,butenoic acid,oxalic acid,maleic acid,succinic acid,hydroquinone,catechol and resorcin.

利用GC-MS分析了苯酚降解主要中间产物为异丁酸、丙二酸、对苯醌、丁烯酸、乙二酸、顺丁烯二酸、丁二酸、邻苯二酚、对苯二酚及间苯二酚等,并据此推测了苯酚电催化氧化的可能反应途径。

Company to pursue "market-oriented to product quality as a fundamental to technological innovation as the core competitiveness" business philosophy, since its establishment has successfully developed a number of ribose nucleoside abacavir drugs such products, as well as key intermediates and a number of enterprise solutions for the production of technical problems.

公司奉行"以市场为导向,以产品质量为根本,以技术创新为核心竞争力"的经营理念,成立以来已成功开发出多个核糖核苷类产品以及阿巴卡韦等药物的关键中间体,并为多个企业解决了生产技术难题。

The synthetic condition of intermediates 2 was studied. The rotatory characteristic of 3a, b was measured.

对中间体2的合成条件进行了探讨,并测定了手性氮丙啶试剂的旋光性。

6β-santonin could be selectively reduced and hydroxylated by the cell suspension cultures of P.acinosa, which would provide valuable intermediates for its further structural modification.

结论利用商陆培养细胞可对6β-santonin进行选择性还原及羟基化反应,可为其进一步化学结构改造提供有价值的中间体。

The thesis aims at the studies on the synthesis of dihydroagarofuransesquiterpenes and the synthesis of the important intermediates —α-methoxylmethyl butenolide and α-methoxyl-methyl butadienolide in the synthetic approachto Germacranolide sesquiterpenes from α--Santonin.Ⅰ.

本论文以α--山道年为原料,对二氢沉香呋喃倍半萜的合成以及吉马型倍半萜合成中的重要中间体12-甲氧基-7(11)-烯-6,13-内酯及12-甲氧基-5(6),7(11)-二烯-6,13-内酯的合成进行了研究。

The evolution of intermediates was analyzed semiquantitatively by plotting areas of the corresponding GC peaks as functions of irradiation time.

通过降解产物GC峰面积与时间关系,半定量分析了中间产物的变化。

The synthesis of the pentacyclic skeleton of Et-743 and the construction of the five chiral centers thereof.1. The core pentacyclic skeleton of phthalascidin was constructed with L-dopa as the starting material via thirteen steps. First, two basic synthons, the C-1 functionalized tetrahydroisoquinoline compounds 8 and N-protected Z-dopa derivative 9, were prepared from L-dopa. They were coupled via amide bond to form the dipeptide compounds 10, which were the first key intermediates. Then the primary hydroxyl groups were transformed into the corresponding amino aldehydes 11 via Swern oxidation. Followed by the intramolecular Pictet-Spengler cyclization, the pentacyclic compounds 12 were synthesized.

五环骨架的构建及五个正确手性中心的确立:1.1我们以L-多巴为起始原料,经过多步官能团保护和转化合成了基本结构单元8然后和苯丙氨酸衍生物9,通过缩合反应生成酰胺中间体10,经Swern氧化得到醛化合物11,然后再次利用分子内改良的Pictet-Spengler反应一步构建c,d两环,得到五环骨架化合物12,最后,实现了21-位羰基向氰基的转化,得到了C-1位官能化的化合物14,化合物14不但具有和Et-743一致的五环骨架,而且分子中五个手性中心立体构型也与其完全相同:其中,3,位和13,位的手性中心由原料L-多巴带入,而1,位,11,位和21,位手性中心则通过不对称诱导而确立。

Being combining with products distribution in styrene oxidation, we propose the styrene epoxidation carry out with Ti metallacyclo intermediates, And at the same time Ti-ZSM-5 have properties both catalytic epoxidation and acid-catalysis, namely the skeletal Ti can catalyze styrene epoxidation to styrene oxide and the skeletal Ti and Al can provide Lewis acid site to cause the rearrangement of styrene oxide to phenylacetaldehyde rapidly, the solvolysis to glycols and the cleavage of C=C double bond. Ti-ZSM-5 can also provide Bronsted acid site simultaneously, which is also catalytic center for the solvolysis to glycols.

同时结合Ti-ZSM-5催化选择性氧化苯乙烯反应的产物分布结果,提出苯乙烯环氧化反应可能是通过金属有机环机理进行;Ti-ZSM-5同时具有催化环氧化和酸催化两种功能,其骨架钛可催化苯乙烯环氧化生成环氧苯乙烷,而骨架钛和骨架铝等可提供Lewis酸位使环氧苯乙烷迅速发生重排生成苯乙醛从而使其成为反应的主要产物,同时还可发生加成以及碳碳键的裂解等副反应:Ti-ZSM-5也提供Bronsted酸位,它也是生成加成产物的活性中心。

To obtain more accurate energy result, stationary point energies were calculated. The vibration analysis and the IRC analysis testified the authenticity of intermediates and transition states.

振动分析和IRC分析结果证实了中间体和过渡态的真实性,计算所得的键鞍点电荷密度的变化情况也确认了反应过程。

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那次早餐会期间,在表示过关心和寒暄以后,我们所有人坐了下来,我注意观察了一下,副总统切尼面无表情地吃着班尼迪克蛋(Eggs benedict,源自美国,以英式松饼、火腿、水煮蛋以及荷兰酱组合而成),卡尔。罗夫在餐桌的远端谨慎地经常查看他的黑莓手机,我目睹了他所不为人知的一面。

Talk Undelete failed; someone else may have undeleted the page first.

Talk 无法删除选定的页面或图像(它可能已经被其他人删除了)。

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