氨基

A key intermediate of abacavir, named N-(2-amino-4,6-dichloro-5-pyrimidinyl) formamide was synthesized from diethyl malonate and guanidine hydrochloride. This method suits to industry for large scale. The materials are easy to get and very cheap.

2-氨基-4，6-二氯-5-甲酰氨基嘧啶是合成阿巴卡韦的关键中间体，本文拟以丙二酸二乙酯和盐酸胍为起始原料合成这一关键中间体，具有原料来源广，适合大规模生产等优点。

Two new kind of energy transfer donor-acceptor dyads consisting of α-naphthoic acid moiety and 9-aminoacridine units linked by tetraethylene glycol or triethylene glycol flexible chain have been synthesized.

本工作分别用聚三乙二醇及聚四乙二醇柔性链将α-萘甲酸酯与9-氨基吖啶连接起来，合成了两种新型二元发色团分子体系，在两个体系中，选择激发α-萘甲酸酯，都可以发生从α-萘甲酸酯到9-氨基吖啶的高效率的单重态-单重态能量传递。

Amino 5 nitrophenol was synthesized using o aminophenol and urea as raw materials through cyclocondensation ,nitration and alkaline hydrolysis in turn.

以邻氨基苯酚和尿素为原料，对环合、硝化、碱性水解的传统工艺进行改进，合成了 2 氨基 5 硝基苯酚。

Substituted-2-aminobenthiazoles were dissolved in a mixture of acetic acid,phosphoric acid and propionic acid, and diazotized by nitrosylsulphuric acid, then coupled with m-dimethylaminobenzoicacid to form 6-R-BTAMB in good yield.

我们在2-氨基苯并噻唑的6-位引入了不同的取代基R，合成了6种新试剂，2-I2'-(6'-R-苯并噻唑)偶氮-5-二甲氨基苯甲酸(6-R-BTAMB，R=〓，〓，Cl，Br，〓，〓，)，并研究了6-R-BTAMB与Fe、Co、Ni、Cu和Pd的络合显色反应的光度性能及不同R基团对试剂灵敏度及选择性的影响将6-〓-BTAMB应用于测定铝合金，电镀废液中的铜，人体毛发和矿泉水中铁的含量均取得了满意的结果。

In this paper, we designed and synthesized a molecule of compound 1, 2-(benzooxazol-2-yl)-5-4-(3-(benzothiazol-2-yl) phenylamino-6--1,3,5-triazin-2-ylaminophenol, which can only assembled into an organogel upon a short irradiation with ultrasound in toluene-methanol mixed solvent. DSC, XRD and IR were used to detect the properties and mechanisms of the organogel.

本论文中，我们设计合成了一个有机小分子化合物1，4-氨基（2-羟基苯基）苯并噁唑3-氨基苯基苯并噻唑二辛基胺缩三聚氯嗪，研究发现，在甲苯/甲醇=1：2的混合溶剂中，只有利用超声才能使之形成凝胶，加热冷却的方法不能形成凝胶，而形成针状结晶。

The levels of blood glutamate-pyruvate transaminase, glutamic oxalacetic transaminase were measured and compared.

测定各血标本丙氨酸氨基转移酶、门冬氨酸氨基转移酶的变化并予以比较分析。

The synthesis method of the invention is as follows: first, 5-amino-2-(p-aminophenyl)- benzoxazole and aliphatic diacid are respectively recrystallized; NMP is distilled; solubilizer is dried; second, in an atmosphere of nitrogen, after Py and NMP are mixed evenly and added to a sealed reactor, the solubilizer is added into the reactor, followed by the 5-amino-2-(p-aminophenyl)- benzoxazole, then the mixture in the reactor is stirred; second, in an atmosphere of nitrogen, the mixture in the second step is stirred and heated to 50-150 DEG C, then the aliphatic diacid is added, followed by TPP for condensation; fourth, after methanol is poured into the reactor, the sediment is separated out from the mixture, filtered, washed and dried, so the semi-aromatic polyamide containing oxazole ring is obtained.

本发明的合成方法如下：一、分别重结晶5-氨基-2-苯并唑与脂肪族二酸；蒸馏NMP；干燥增溶剂；二、在氮气气氛下，Py与NMP混匀后加入密封的反应器中，再加入增溶剂，然后加入5-氨基-2-苯并唑，搅拌；三、在氮气气氛下，将步骤二的混合液搅拌并升温至50℃～150℃后加入脂肪族二酸，再加入TPP后缩聚；四、再倾入甲醇析出沉淀，过滤，清洗沉淀，再干燥；即得到含唑环半芳香聚酰胺。

The yield reached 67.0% The medicinal and pesticidal activities of a part of the compounds have been measured .

在进行氨基酰化时，论文克服了该类嘧啶环上4位氨基在常规条件下不与芳香类和带有强吸电子基如三氯乙酰基酰化试剂发生反应的困难，通过采用在强碱性条件下进行酰化，得以成功。

Another method for determining primary structure is to employ Edrnan's , which reacts quantitatively with the free amino group of a peptide to yield the corresponding pheny lthiocarbamoyl peptide, leaving the rest of the peptide chain intact.

另一种可以决定初级结构的方法是用埃德曼降解法，它们能与肽键上的游离氨基定量反应，产生相应的苯氨基硫代甲酰肽，而其余的肽链保持不变。

13C-NMR of phosphonic ester side polyethylene nitrile indicated that addition reaction occurred and G1.5 structure was formed.

超支化端氨基聚膦腈(G1.0)的13C-NMR谱图说明了氨基酯交换反应的发生及G1.0结构的形成。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新