衍生物

In order to find active pesticide leading compounds, thinking about that triazolothiadiazoles had various biological activities, this paper designed and synthesized 11 novel title compounds from 3-substituted-4-amino-5-mercapto-1,2,4-triazoles with heterocyclic carboxylic acid via cyclization in the presence of phosphoryl chloride by the princple of combination of active strucural moieties. The structures of the title compounds were characterized by melting point, IR, 1HNMR and elemental analysis.

为了寻找高活性农药先导化合物，考虑到三唑并噻二唑衍生物具有广泛的生物活性，本文利用活性亚结构拼接原理，将活性基团分别引入1，2，4-均三唑并[3，4-b]-1，3，4-噻二唑杂环的3位和6位，合成了未见文献报道的3，6-二取代均三唑并[3，4-b]-1，3，4-噻二唑类化合物11个，并用IR、1HNMR及元素分析测试技术对其进行了结构表征。

We have also investigated the photochemical behavior of 3,4'-DDS and its derivatives.

我们也针对3，4'-DDS的衍生物其光化学行为做探讨。

Methods During the period from October 2002 to October 2004, the patients whose HPD tests were negative were treated with photodynamics method by using HPD in vitro irritated.

方法我们于2002年10月至2004年10月，选血卟啉衍生物皮试阴性患者，采用体外激活HPD的方法开展光动力学治疗。

In addition, the studies ofphotophysical and photochemical behavior of phenothiazines bymeans of laser flash photolysis were carried out.

此外，用激光闪光光解技术研究了吩噻嗪衍生物的光物理和光化学性质，并探讨了有三乙胺、四氰乙烯存在时对光解产物的影响。

It includes the following steps: polymerizing 2, 4-dihydroxyl metaphenylene diamine hydrochloride, diamine monomer and dipic acid anhydride to gain the polyimide that contains hydroxy on the molecule chain, making the hydroxyl take esterification reacting with acyl chloride and acrylic acid to gain polyimide photosensitive material that has negative photonasty.

该聚酰亚胺光敏材料以2，4-二羟基间苯二胺盐酸盐，二胺单体和二酸酐为原料进行聚合，得到分子链上含羟基的聚酰亚胺，然后使羟基与丙烯酸及其衍生物的酰氯发生酯化反应，得到具有负性感光性能的聚酰亚胺光敏材料。

In the non-polar solvent, auto-sensitized photooxidation of the aminated hypocrellins is mainly involved with the singlet oxygen mechanism.

三。在非极性溶剂中，胺基衍生物的自敏光氧化主要涉及单重态氧的机制，在极性溶剂中则以超氧负离子自由基的机制为主。

Objective: To study the fluorescence spectra of tetraphenylporphyrine and its fluorescence quantum yields, so as to search for better photosensitizer.

目的：将四苯基卟啉(H2TPP)及其衍生物作为研究对象，测定其荧光光谱和荧光量子产率，从而筛选出较好的光敏剂。

The main results are as follows.1. The UV-visible absorption spectra, the spin-trapping EPR measurements, and the DPA (9,10-diphenylanthracene) bleaching experiments showed that (1) HB-Net exhibits much improved light harvesting efficiency in the phototherapeutic window (600-900 nm) as the result of its remarkable absorption red shift with respect to HB;(2) HB-Net remains the generation abilities of semiquinone anion radical, superoxide anion radical, hydroxyl radical, and singlet oxygen, but with much lower efficiencies than that of HB, most likely due to its very short triplet excited state lifetime.

设计合成了寡聚吡咯酰胺修饰的竹红菌乙素衍生物HB-Net，利用紫外-可见吸收光谱、自旋捕获技术和DPA光漂白法详尽比较了HB-Net与HB的光动力性质，发现：(1) HB-Net的吸收光谱较HB有显著红移，在光疗窗口的吸光能力明显提高；(2) HB-Net能够产生半醌负离子自由基、超氧负离子自由基、羟基自由基和单重态氧，但由于其短的三重态寿命，这些活性物种的产生能力均弱于HB.2。

Hypocrellins (including hypocrellin A and hypocrellin B), isolated from the parasitic fungus Hypocrella bambusae sacc, are efficient phototherapeutic agents and photosensitizers.

竹红菌素(包括竹红菌甲素和竹红菌乙素)是从竹红菌中提取出来的一类天然光敏色素，属于苝醌类衍生物。

Unsaturated alkynyl alcohols, such as dehydronerolidol, dehydrogeranyllinalool, and dehydroisophytol, were prepared by ethynylation of turpentine derivatives, namely terpenylacetones, e. g. geranylacetone, farnesylacetone, and phyton under normal pressure in presence of alkali metal hydroxide and organic solvents.

松节油衍生物格萜烯基丙酮，如香叶基丙酮、金合欢基丙酮和植物酮在常压条件，碱金属氢氧化物和有机溶剂存在下可发生乙炔化反应，形成对应的α，β-不饱和炔醇化合物脱氢橙花叔醇、脱氢香叶基芳樟醇和脱氢异植物醇。

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％。