查询词典 imino-ester

These results provided the evidence that the formation of imino acetoxyphosphoranes intermediates was crucial to bioorganic reactions of N-phosphoamino acids.

这些结果从机理上证明N-磷酰氨基酸在水／醇体系中所发生的仿生化反应的确经历了氨基酸磷烷中间体。

E. the activation of amino acid, the elongation of peptide chain and the termination of the chain reaction, among which the activation of amino acid—the formation of imino acetoxyphosphoranes was the key step.

在这三步中，氨基酸的活化即氨基酸磷烷的形成是整个自组装成肽反应的最重要一步。

Some stable imino -acetoxyphosphoranes were successfully synthesized.

建立了一套合成稳定磷烷的新方法，并成功地合成了稳定的氨基酸磷烷。

IR spectra and UV spectra of the complexes are described. The results show that two phenolic oxygen and two imino nitrogen atoms in H2L coordinate to M ions.

通过对配合物的红外光谱和紫外光谱测定与归属，推测在三个过渡金属Schiff碱配合物中配体是通过酚羟基的氧原子和亚氨基的氮原子进行配位的。

If the nitrogen of these imino acids is involved in the peptide bond, the adjacent amino acid side chains are cis instead of showing the usual trans configuration, resulting in destabilization of an α- helix.

如果这些亚氨基酸中的氮进入肽链，那么邻近的氨基酸侧链是顺式的而不表现出通常的反式的构象，就导致了α-螺旋结构的不稳定。

The main difference between fish and mammalian gelatin is the content of the imino acids Pro and Hyp, which stabilises the ordered conformation when gelatin forms a gel network.

哺乳动物和鱼类的主要区别是明胶的氨基酸含量和亲脯氨酸、而稳定下来的时候，下令构明胶凝胶形成网络。

Pharmacological results also indicated that the carbonyl and imino of Z-47 are important to its marked antiinflammatory and analgesic activity. The activity will be reduced or abolished with Z-47 converted to oximes or/and acetamides.

药理结果还表明，Z-47结构中的羰基和仲胺基对Z-47的显著抗炎镇痛作用具有重要的贡献，将Z-47羰基变成肟或／和将Z-47仲胺基酰化都会造成抗炎镇痛作用的降低甚至是丧失。

It is worthwhile to note that only the α-amino acids, could be activated into the five-membered cyclic imino acetoxyphosphoranes, while the β-ones not.

实验表明，仅α-氨基酸能发生这种自组装成肽反应，而β-氨基酸却不能进行，这是由磷的五元环特性决定的。

The addition reactions with phosphine anion andthe CsF promoted Strecker reactions were chose to evaluate the relationship of thesetwo chiral groups in the diastereoselective additions of the imino group.

通过亚磷酸负离子的加成反应和CsF促进下的Strecker反应研究了这两个手性基团的不对称诱导的匹配情况。

The process was methanolysis α-imino ether acid hydrogen chloride salt from methyl-cyanide.

研究了以乙腈为原料经α-亚氨基乙醚盐酸盐醇解制备原醋酸二乙酯的工艺方法，对醇解的投料比、反应时间及中和pH值等工艺条件进行了研究，得出较优惠的工艺条件。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。