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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學(xué)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. 尤其脂肪酶在有機合成中經(jīng)常表現出極高的立體選擇性,因此它們經(jīng)常被用于制備光學(xué)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. 摘要手性催化的環(huán)氧化物立體選擇性開(kāi)環(huán)反應可以用來(lái)制備多種具光學(xué)活性的化合物，因而成為有機合成中極為重要的方法之一。
- 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. 催化不對稱(chēng)合成是制備光學(xué)活性化合物的有效方法，金屬有機化合物作為試劑或催化劑在這一領(lǐng)域得到了廣泛的應用。
- 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. 催化不對稱(chēng)合成是制備光學(xué)活性化合物的有效方法,金屬有機化合物作為試劑或催化劑在這一領(lǐng)域得到了廣泛的應用。
- Racemization is found with optically active substrate substrates. 發(fā)現旋光基質(zhì)有外消旋作用。
- Conversion of an optically active substance to a racemic form. 外消旋轉化將光學(xué)活性物質(zhì)轉化為外消旋形式
- Showing no optical activity in polarized light. 無(wú)旋光的極化光下無(wú)光學(xué)反應的
- We optimize the signal gain of the optically active crystal and apply the results to a BSO and BTO crystal. 對旋光材料優(yōu)化增益;并把處理結果應用于BSO和BTO晶體.
- Artemisinin, an active compound extracted from Artemisia annua, L. together with its derivatives are widely used as anti-malarial drugs. 摘要青蒿素是從植物黃花蒿中提取的抗瘧疾的活性成份，目前在臨床上廣泛用于治療瘧疾。
- Optically active cyanohydrins are important intermediates lor the synthesis of agricultural chemicals. 光學(xué)活性氰醇是合成大量醫藥、農藥產(chǎn)品的重要中間體。
- The intradermal test must be done with active compound before using cephalosporins in patients allergic to pini... 若患者對青霉素過(guò)敏,頭孢菌素類(lèi)抗生素在使用前必須進(jìn)行原藥皮膚過(guò)敏試驗。
- Recent progresses of the synthesis of optically active tert-leucine are reviewed in this paper. 本文綜述了近年來(lái)光學(xué)活性的叔亮氨酸的合成研究及最新進(jìn)展。
- POLARIMETER - 10 units-Fully automatic polarimeter for measuring the rotation of optically active samples. 沈陽(yáng)凱西貿易公司采購旋光儀;具體標準如下: .
- This review discussed the development of amide herbicdes, mainly new active compound and some questions in application. 評述了酰胺類(lèi)除草劑的發(fā)展、主要新品種及使用中的若干問(wèn)題。
- The extract from that bark is a potent blend of active compounds. 這種樹(shù)皮的提取物是一種活性化合物的強效混合物。
- The formation of enantiopure optically active biomolecules is an important chapter in the history of evolution. 光學(xué)活性生物分子的形成是世界進(jìn)化歷史中一個(gè)重要過(guò)程。
- The optically active polymers obtained were soluble in DMF and DMSO under appropriate reaction condition. 產(chǎn)物可溶于DMF與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%. 經(jīng)GC-MS分析，桉葉油的主要化學(xué)成分為1;8-桉葉素，其相對含量為90.;81%25。
- A pharmacologically active compound produced by growing microorganisms which kill or inhibit growth of other microorganisms. 通過(guò)培育某些可殺滅其它微生物或可抑制其它微生物的微生物而產(chǎn)生的具有藥理活性的一類(lèi)化合物.
