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- Chiral synthesis can be achieved by taking advantage of natural or synthetic optically active compounds. 在手性合成中利用了天然或合成的光学活性化合物。
- In fact, l ipases often display high enantioselectivity, which makes these catalysts especi ally attractive for the interest for optically active compounds. 尤其脂肪酶在有机合成中经常表现出极高的立体选择性,因此它们经常被用于制备光学活性化合物。
- The enantioselective ring opening of epoxides catalyzed by chiral catalysts has emerged as an important synthetic strategy for the preparation of various optically active compounds. 摘要手性催化的环氧化物立体选择性开环反应可以用来制备多种具光学活性的化合物，因而成为有机合成中极为重要的方法之一。
- The catalyzed asymmetric synthesis was the effective method to prepare the optics active compounds, the pentamethide obtaines the widespread application as the reagent or the catalyst in this domain. 催化不对称合成是制备光学活性化合物的有效方法，金属有机化合物作为试剂或催化剂在这一领域得到了广泛的应用。
- The catalyzed asymmetric synthesis was the effective method to prepare the optics active compounds,the pentamethide obtaines the widespread application as the reagent or the catalyst in this domain. 催化不对称合成是制备光学活性化合物的有效方法,金属有机化合物作为试剂或催化剂在这一领域得到了广泛的应用。
- Racemization is found with optically active substrate substrates. 发现旋光基质有外消旋作用。
- Conversion of an optically active substance to a racemic form. 外消旋转化将光学活性物质转化为外消旋形式
- Showing no optical activity in polarized light. 无旋光的极化光下无光学反应的
- We optimize the signal gain of the optically active crystal and apply the results to a BSO and BTO crystal. 对旋光材料优化增益;并把处理结果应用于BSO和BTO晶体.
- Artemisinin, an active compound extracted from Artemisia annua, L. together with its derivatives are widely used as anti-malarial drugs. 摘要青蒿素是从植物黄花蒿中提取的抗疟疾的活性成份，目前在临床上广泛用于治疗疟疾。
- Optically active cyanohydrins are important intermediates lor the synthesis of agricultural chemicals. 光学活性氰醇是合成大量医药、农药产品的重要中间体。
- The intradermal test must be done with active compound before using cephalosporins in patients allergic to pini... 若患者对青霉素过敏,头孢菌素类抗生素在使用前必须进行原药皮肤过敏试验。
- Recent progresses of the synthesis of optically active tert-leucine are reviewed in this paper. 本文综述了近年来光学活性的叔亮氨酸的合成研究及最新进展。
- POLARIMETER - 10 units-Fully automatic polarimeter for measuring the rotation of optically active samples. 沈阳凯西贸易公司采购旋光仪;具体标准如下: .
- This review discussed the development of amide herbicdes, mainly new active compound and some questions in application. 评述了酰胺类除草剂的发展、主要新品种及使用中的若干问题。
- The extract from that bark is a potent blend of active compounds. 这种树皮的提取物是一种活性化合物的强效混合物。
- The formation of enantiopure optically active biomolecules is an important chapter in the history of evolution. 光学活性生物分子的形成是世界进化历史中一个重要过程。
- The optically active polymers obtained were soluble in DMF and DMSO under appropriate reaction condition. 产物可溶于DMF与DMSO中,具有旋光性。
- The results of GC-MS showed that the active compound of eucalyptus oil was 1,8- cineole, the relatively content was about 90.81%. 经GC-MS分析，桉叶油的主要化学成分为1;8-桉叶素，其相对含量为90.;81%25。
- A pharmacologically active compound produced by growing microorganisms which kill or inhibit growth of other microorganisms. 通过培育某些可杀灭其它微生物或可抑制其它微生物的微生物而产生的具有药理活性的一类化合物.
