卟啉

The Soret band in the UV-Vis spectrum of the porphyrin was split because of this effect.

卟啉环流效应对侧链咪唑芳环的影响导致咪唑环上三个氢原子的化学位移向高场移动，且卟啉的紫外－可见光谱的Soret带发生裂分。

Results: There is a significant difference between the levels of Hb、SF、 FEP of model groups and normal group. The syndrome of every treatment groups is much better than physiological saline solution group, and recover gradually. The Hb、 SF、 FEP and IL-2、 IL-6 were recover gradually. But the improvement of AS two solstices pill add chalybeate group is comparatively obvious. Conclusions: AS two solstices pill add chalybeate has obvious therapeutic action on IDA model rats.

结果：造模后，各组大鼠Hb、血清铁蛋白、红细胞游离原卟啉与正常对照有明显差异，经治疗后症状表现上明显较模型NS对照组好，且逐渐恢复，Hb、血清铁蛋白、红细胞游离原卟啉、血清IL-2、IL-6水平逐渐恢复正常，其中以加味二至丸加铁剂组和当归补血汤加铁剂组最为明显。

Of the cutaneous porphyrias, both variegate porphyria (median DLQI 3) and porphyria cutanea tarda (median DLQI 1.5) had a much lower impact on QoL than EPP.

皮肤性卟啉病中，多样性卟啉病（平均DLQI为3）和迟发性皮肤卟啉病（平均DLQI为1.5）较之EPP对QoL的影响要小得多。

The B and Q bands, the characteristic bands of the two metalloporphyrins, undergo bathochromic shift in some of the Lewis basic solvents. The spectral changes are thought to be due to the axial coordination of these solvents with vanadium in VOTPP and nickel in NiTPP. After axia...

结果表明，金属卟啉可以和一些Lewis碱性溶剂发生轴向配位作用，其特征紫外可见吸收峰发生红移；轴向配位作用与卟啉中心金属离子的外层d轨道电子数、碱性溶剂的供电子能力及其空间构造有关，VOTPP比NiTPP更容易和Lewis碱性溶剂发生轴向配位作用；碱性强、空间阻碍小的Lewis碱性溶剂易于与金属卟啉发生轴向配位作用。

The synthesis of DPEP and ETIOP were investigated, and our studies was focused on the porphyrins with five-membered exocyclic rings.

石油卟啉DPEP和ETIOP的全合成：合成石油卟啉可以为天然石油卟啉的结构鉴定提供标准样品。

The results show that calix[6] arene-bismetalloporphyrins possess much higher catalytic activity than the corresponding metalloporphyrin while displaying the sam eselectivity by giving rise to acetophenone as the ketonic component in excellent yield.

研究了杯[6]芳烃-双金属卟啉在氧化异丙苯中的催化行为，结果表明杯[6]芳烃-双金属卟啉比之相应的金属卟啉具有更高的催化活性，并表现同样的选择性，生成苯乙酮和醇组份。

Porphyrins is a general term of the homologue and derivative of porphine with substituting groups at the outside ring, becoming metalloporphyrins promptly after two protons on its nitrogen are replaced by the metal ion.

卟啉是卟吩环外带有取代基的同系物和衍生物的总称，当其氮上两个质子被金属取代后即成金属卟啉。

The content of intermediates such as protochlorophyll,Mg protoporphyrinand protoporphyrin IXwere reduced and δ aminolevulinc acid and porphohilinogenwere markedly accumulated in albino seedlings of W1,which proved that there was a blockage in the formation of uroporphyrinogen or coproporphyrinogen during Chl biosynthesis under lower temperature.

白化苗中Chl生物合成的中间产物原叶绿素、镁原卟啉、原卟啉IX含量减少，而δ氨基酮戊酸和胆色素原大量积累，证明突变体W1低温下Chl生物合成卟啉原形成部位受阻

The active conformation of protoporphyrinogen IX (substrate of protoporphyrinogen oxidase) has been established using the Distance Comparisons method. In this paper, four different conformational molecules of Protogen IX and crystal molecule of diphenylethers are analyzed by comparing their geometry parameters. The results show the lower energy active conformation from the DISCO model is more reasonable.

我们曾利用距离比较法确定了原卟啉原氧化酶的底物—原卟啉原IX的活性构象，本文从构象分析的角度对4种不同构象的原卟啉原IX分子与二苯醚类分子的晶体学构象进行了几何参数的比较和分析，结果进一步证实了距离比较法所确定的活性构象更为可靠。

In the reasonable drug molecular design,analyzing the conformations of the substrate without three-dimension structure and confirming its active conformation are very important to illustrate the spatial shape and active site of target enzyme. The active conformation of protoporphyrinogen IX substrate of protoporphyrinogen oxidase has been established using the Distance Comparisons DISCO method. In this paper, four different conformational molecules of Protogen IX and crystal molecule of diphenylethersAF are analyzed by comparing their geometry parameters. The results show the lower energy active conformation from the DISCO model is more reasonable.

在合理药物设计方法中，当靶标酶的三维结构未知时，对其底物进行构象分析，特别是确定其活性构象，对阐明靶标酶活性中心的空间形状和作用位点具有十分重要的意义我们曾利用距离比较法确定了原卟啉原氧化酶的底物—原卟啉原IX的活性构象，本文从构象分析的角度对4种不同构象的原卟啉原IX分子与二苯醚类分子的晶体学构象进行了几何参数的比较和分析，结果进一步证实了距离比较法所确定的活性构象更为可靠

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷