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- It elaborates the definitions of epimer and epimerization, states the applications of epimerization in medicine and pesticide,and points out its expansive prospect . 闡述了差向異構體和差向異構化的定義。差向異構化技術(shù)在醫藥和農藥中間體中應用廣泛,前景廣闊。
- RESULTS The chlortetracycline's epimer, tetracycline and its epimer, as impurities in chlortetracycline have been determined by the liquid chromatogram and its first order mass spectrum. 結果得到金霉素樣品液相色譜圖以及液相色譜峰對應的一級質(zhì)譜圖。對譜圖進(jìn)行分析歸納,推測金霉素樣品中含有四環(huán)素、差向異構四環(huán)素和差向異構金霉素雜質(zhì)組分。
- Keywords cycloclausenamide;X Ray single crystal analysis;epimeride; 橋環(huán)黃皮酰胺;X射線(xiàn)單晶分析;差向異構;
- Keywords Luminescent bacterium;Tetracycline;Epimer;Veterinary medicine; 發(fā)光菌;四環(huán)素;差向異構體;獸藥;
- The isolation and identification of two new epimer from the mother liquid of testosterone 睪丸素母液中兩個(gè)新差向異構體的分離與結構鑒定
- Isolation and identification of two new epimer from the mother liquid of megestrol acetate 安宮黃體酮母液中兩個(gè)新化合物的分離與結構鑒定
- Keywords Two-dimensional NMR;Chemical shift;Methyl gibbercllate;Epimer;Configuration .; 化學(xué)位移;赤霉酸甲酯;差向異構體;構型;
- Keywords Soyasterol;epimer;high performance liquid chromatography;gas chromatography-mass spectrometry; 大豆甾醇;差向異構體;高效液相色譜;氣相色譜-質(zhì)譜;
- ~1H-NMR characteristic spectra of Epimer UDCA CDCA and deterimination the Major composition in bear bile powder has been reported. 本文研究了差向異構體熊去氧膽酸和鵝去氧膽酸的~1H-NMR譜學(xué)特征。 利用其特征譜峰鑒別熊膽粉中的熊去氧膽酸和鵝去氧膽酸并測定其相對含量。
- Keywords Curcumol;Microbial-transformation;Metabolite;Epimer;Aspergillus niger;Penicillium janthinellum;and Cunninghamella blakesleana; 莪術(shù)醇;微生物轉化;代謝產(chǎn)物;差向異構體;黑曲霉;微紫青霉;短刺小克銀漢霉;
- 1H-NMR characteristic spectra of Epimer UDCA CDCA and deterimination the Major composition in bear bile powder has been reported. 利用其特征譜峰鑒別熊膽粉中的熊去氧膽酸和鵝去氧膽酸并測定其相對含量。
- epimern. 差向異構體
- epimeriden. 差向異構體
- epimer(diastereomer) 差相異構體
