化合物

The results indicated that the values of EC50 of compound 1# was 0.019 mg·L-1, against germination of Amaranthus retroflexus.

测定了1#化合物对反枝苋的抑制活性，结果表明，1#化合物对反枝苋种子萌发的EC50 分别为0.019mg·L-1。

SA catalyzed the amidation of benzhydryl alcohol in good to excellent yields under solvent-free condition.

加热条件下磺氨酸可以催化磺酰胺和酰胺类化合物与二苯甲醇的取代反应，生成新的取代胺类化合物。

In this method, blue-violet compound formed through reaction between amido and nihydrin hydrate can be detected at 570nm wavelength, and its content is proportional to the peak area. This method is easy to use, sensitive, and saving time. Its average recovery is 98.4%, and relative standard deviation is 1.0%.

试验主要利用氨基酸的氨基与茚三酮水合物反应可生成蓝紫色化合物，该化合物最大吸收峰在570nm波长处，且此吸收峰值的大小与氨基酸释放出的氨基成正比，因此可作为氨基酸定量分析方法。

These toxic data(TC50,SDH and LDH) were used as dependent variable and 10 topological indices of 25 aminobenzene derivatives were used as independent variable.QSAR was analyzed with multiple stepwise linear regression.The results indicated that there is different toxicity with different structure of compounds.

内容摘要以大鼠游离肝细胞半数中毒浓度(TC50)和细胞逸出酶为观察指标，研究了25种苯胺类化合物的肝细胞毒性，并利用这些毒性效应数据为因变量，以这些化合物的10种拓扑学指数为自变量，利用多元逐步回归统计分析方法进行了定量结构-活性关系的深入探讨。

These toxic data(TC50,SDH and LDH) were used as dependent variable and 10 topological indices of 25 aminobenzene derivatives were used as independent variable.QSAR was analyzed with multiple stepwise linear regression.The results indicated that there is different toxicity with different structure of compounds.

卫生毒理学杂志990108 内容摘要以大鼠游离肝细胞半数中毒浓度(TC50)和细胞逸出酶为观察指标，研究了25种苯胺类化合物的肝细胞毒性，并利用这些毒性效应数据为因变量，以这些化合物的10种拓扑学指数为自变量，利用多元逐步回归统计分析方法进行了定量结构-活性关系的深入探讨。

The asymmetric ring-opening aminolysis of meso-epoxides represents one of the most important reactions in organic synthesis,giving rise to enantio-enriched aminoalcohol products with two chiral centers.

中文摘要：胺类对内消旋环氧化合物的不对称开环是一类重要的反应，反应生成两个手性中心的氨基醇化合物在有机合成中有着重要的应用。

Results: The values of blood glucose at 30, 45, 60 and 90 minute after intake of 50 g carbohydrates of steamed bread and 100 g Amorphophallus konjac were obviously decreased compared with single intake of 50 g carbohydrates steamed bread, and showed a statistical significance.

结果：进食含50 g碳水化合物的白面馒头和100 g魔芋后，患者30、45、60和90 min血糖与对照进食含50 g碳水化合物的白面馒头比较，血糖明显下降，差异有统计学意义。

Results Compound albicanyl caffeate displayed strong antifungal property with MIC 4 μg/ml, while moderate antifungal effects (MIC16 μg/ml)were observed with compounds emodin, resveratrol, 3,4'-difluorostilbene, 2,2'-difluorostilbene and 2,3',5'-trifluorostilbene. Pakyonol, catechin, ampelopsin A, 3,4,4'-trihydroxyl- bibenzyl, 2,4'-difluorostilbene, 4-fluorostilbene,2-methyloxy-4'-fluorostilbene showed lower activity with MIC 32 μ g/ml.

结果化合物albicanyl caffeate对白色念珠菌表现出强的抗真菌活性，MIC为4μg/ml；而化合物大黄素、白藜芦醇、3，4'-二氟二苯乙烯、2，2'-二氟二苯乙烯及2，3'，5'-三氟二苯乙烯显示出中等程度的抗真菌活性，MIC为16μg/ml；双联苄pakyonol、多酚类儿茶素、白藜芦醇二聚体野葡萄素A、3，4，4'-三羟基联苄、2，4'-二氟二苯乙烯、4-氟二苯乙烯及2-甲氧基-4'-氟二苯乙烯显示出较弱的抗真菌活性，MIC为32 μg/ml。

Compounds 1~4 are all annonaceous acetogenins, which have been found from the seed of Annorta glabra Linn for the first time.

4个化合物均为番荔枝内酯类化合物，都是首次从光叶番荔枝种子中分离得到。

The three compounds including the new compound are isolated from the roots of P. anserine for the first time and anserinoside is a new one.

此3个化合物为首次从阙麻中分离得到，其中阙麻苷经鉴定为新化合物。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。