- 更多网络例句与立体异构相关的网络例句 [注：此内容来源于网络，仅供参考]
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Cephalotaxine ester of 2-oxo-6-methylheptanoic acid was treated with lithium diisopropylamide and Me O-(1-methoxyisopropyl)glycolate to give a mixture of homoisoharringtonine and its stereoisomers with 56% yield. The four stereoisomers separated by TLC showed identical mass spectra and almost superimposed IR but with different 1H NMR spectra. The configuration of the 2'-C and 3'-C of the four isomers were postulated based upon their 1H NMR spectra as compared with the 1H NMR spectra of isoharringtonine and its stereoisomers.
2-氧代-6-甲基庚酰基三尖杉碱(3)与0-(1-甲氧基异丙基)羟基乙酸甲酯(4)在强碱性试剂二异丙胺锂存在下，起亲核加成反应，反应中间体5在室温用酸性丙酮水解，得到一种新的三尖杉酯类生物碱一一高异三尖杉酯碱(6c)及其立体异构体(6a、6b、6d)的混合物，产率56%、通过制备薄层层析分得这四个立体异构体，它们的1H NMR和异三尖杉酯碱及其立体异构体的1H NMR类似，推定了它们的绝对构型。
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A rather more complex case is that of steric isomerism.
更复杂的情形是立体异构问题。
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A solution of one stereoisomer of a given monosaccharide rotates plane-polarized light to the left and is called the levorotatory isomer, designated
一特定单糖的一种立体异构体溶液使平面偏振光向左旋转称为左旋，标记为
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A solution of one stereoisomer of a given monosaccharide rotates plane- polarize d light to the left and is called the levorotatory isomer, designated
一特定单糖的一种立体异构体溶液使平面偏振光向左旋转称为左旋，标记为
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John Cornforth (b. 1917) and Vladimir Prelog (1906-98) shared a 1975 Nobel Prize for work on stereochemistry and stereoisomerism of alkaloid s, enzymes, antibiotics, and other natural compounds.
康福思和普雷洛格在立体化学以及生物碱、、抗生素和其它天然化合物的立体异构方面做了许多工作，因而共获1975年的诺贝尔奖。
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John Cornforth (b. 1917) and Vladimir Prelog (1906-98) shared a 1975 Nobel Prize for work on stereochemistry and stereoisomerism of alkaloids, enzymes, antibiotic s, and other natural compounds.
康福思和普雷洛格在立体化学以及生物碱、、抗生素和其它天然化合物的立体异构方面做了许多工作，因而共获1975年的诺贝尔奖。
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The generating results of our system were compared with the published,results of DENDRAL and SEMAMI systems, and they were consistent with eachother.
目前本系统对于含C、N、P、S与Si等元素由于不对称中心、不对称轴引起的立体异构和几何异构均能进行穷举生成。
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The invention includes all sterioisomeric forms, including individual diastereoisomers and enantiomers of the compound of formula as well as racemic and non-racemic mixtures thereof.
本发明包括式化合物所有的立体异构形式，包括单个的非对映异构体和对映异构体，及其外消旋的和非外消旋的混合物。
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Diltiazem is an important coronary vasodilating drug and contains two chiral centers while only the (2S, 3S)-isomer has the desired activity.
地尔硫卓是重要的心血管药物，在其分子结构中含有2个手性中心，可产生4个立体异构体，其中只有(2S， 3S)－异构体具有药理活性，因此其立体选择性合成具有很大的挑战性。
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The combined acids , LHZZS,XDZZS and SLZZS, one of four fractions in montan resins from montan waxes from Liaohu, Xundian and Shulan brown coal respectively, were derived by CH 2N 2 to methyl esters and their chemical constituents and structural characteristic were studied on GC-MS.
结果显示，树脂结合酸均以正构烷酸为主要成份，其分布为C1 2 ～C2 8，高含量的正构烷酸集中在低碳数一端，C2 0 含量最高，其次为C1 6 ，而舒兰结合酸中，正构烷酸占绝对优势，且C1 6 为最高含量的化合物；去氢松香酸在每一个样品中含量较低，其它三环二萜酸，如松脂酸、三达松脂酸等异构体或立体异构体含量也非常低；具有五环三萜骨架的酸性物质，在潦浒、舒兰结合酸中比较丰富，其含量超过寻甸结合酸；在低碳数一端，存在着各种支链烷酸及苯甲酸、苯酚及取代物。
- 更多网络解释与立体异构相关的网络解释 [注：此内容来源于网络，仅供参考]
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stereoisomer：立体异构体
立体异构体(stereoisomer)是指由分子中原子在空间上排列方式不同所产生的异构体,它可分为顺反异构体,对映异构体和构象异构体三种,也可分为对映异构体和非对映异构体两大类.
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stereoisomer：立体异构物
stereochemistry 立体化学 | stereoisomer 立体异构物 | stereoisomeride 立体异构物
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stereoisomer：立体异构物 (名)
stereograph 立体画; 立体照片 (名) | stereoisomer 立体异构物 (名) | stereoisomerism 立体异构现象 (名)
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stereoisomerism：立体异构现象;立体异构性
stereoisomeride 立体异构物 | stereoisomerism 立体异构现象;立体异构性 | stereomutation 立体突变
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epimeride：表异构物,差向(立体)异构体
epimerase 差向异构酶 | epimeride 表异构物,差向(立体)异构体 | epimorphosis 新建再生
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stereoisomeric polymer：立体异构聚合物
stereographic projection 立体射影(複素関数) | stereoisomeric polymer 立体异构聚合物 | stereoisomeric specificity 立体异构特异性
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stereoisomeride：立体异构体
stereography 立体平面法 | stereoisomeride 立体异构体 | stereoisomerism 立体异构
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stereoisomeride：立体异构物
stereoisomer 立体异构物 | stereoisomeride 立体异构物 | stereoisomerism 立体异构现象;立体异构性
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stereomer：立体异构体
stereoisomerism 立体异构 | stereomer 立体异构体 | stereomicroscope 立体显微镜
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stereomeric：立体异构的
stereomer 立体异构体 | stereomeric 立体异构的 | stereomeride 立体异构体