共查询到19条相似文献,搜索用时 109 毫秒
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抑郁症的发病率在全球呈现明显上升趋势。盐酸度洛西汀是较好的抗抑郁药物,目前工业上采用全化学合成方法存在着一定的缺陷,而酶催化反应条件温和、环境友好,尤其对手性化合物的合成有极高的对映选择性,引入酶法能弥补化学合成的不足。本文针对化学法和酶法相结合制备手性药物盐酸度洛西汀的研究进展进行了综述,重点介绍了酶法拆分和生物催化不对称合成技术制备盐酸度洛西汀关键单一对映中间体:(S)-1-(噻 吩-2-基)-1-仲醇衍生物的策略,分析了它们的优缺点,展望了发展前景,指出筛选高催化性能和高稳定性的微生物是实现酶催化技术工业化应用的主要方向。 相似文献
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《高校化学工程学报》2021,35(5)
轴手性化合物是许多天然产物、药物中间体、手性配体的核心骨架,在手性化合物中占有重要地位。与金属催化剂催化的不对称化学偶联反应等化学方法相比,生物催化方法具有选择性高、反应条件温和、环保等优势。随着酶的改造等关键技术的快速发展,酶催化轴手性化合物的合成成为新的研究热点与难点。从动力学拆分(kinetic resolution,KR)、动态动力学拆分(dynamic kinetic resolution,DKR)以及去对称化(desymmetrization)等不对称合成方法入手,综述了生物催化轴手性化合物的合成领域的主要研究成就,并阐述了此方向的发展前景、应用及存在的问题。 相似文献
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生物催化的手性合成是当今手性合成方法研究的热点和发展方向。本文综述了生物催化技术在手性化合物合成中的应用,并对其应用前景进行展望。 相似文献
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介绍了手性化合物的重要性及其发展情况,从手性分子的制备、手性有机小分子催化的应用等方面总结了手性分子的研究进展,指出了手性分子的发展方向。 相似文献
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青霉素酰化酶是一种重要的工业用酶。它应用广泛,能催化合成β-内酰胺抗生素及其中间体、多肽、氨基酸等多种手性化学品。本文分为6-APA和7-ADCA的制备、β-内酰胺抗生素的合成、手性化合物的拆分、前手性化合物的不对称水解和多肽合成等5个方面进行阐述。 相似文献
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R Chirumamilla R Marchant P Nigam 《Journal of chemical technology and biotechnology (Oxford, Oxfordshire : 1986)》2001,76(2):123-127
Captopril is an antihypertensive agent that inhibits the angiotensin‐converting enzyme of the renin–angiotensin system. Chiral intermediates are used in the synthesis of the drug. These intermediates are obtained by resolution of racemic compounds or by chemical, biocatalytic methods and or by asymmetric synthesis by biocatalytic process. This article reviews the various chemical and biochemical processes involved in the synthesis of the chiral drug, including the pharmacological action of captopril. © 2001 Society of Chemical Industry 相似文献
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Extended Catalytic Scope of a Well‐Known Enzyme: Asymmetric Reduction of Iminium Substrates by Glucose Dehydrogenase 下载免费PDF全文
Sebastian Roth Dr. Andreas Präg Dr. Cindy Wechsler Marija Marolt Sascha Ferlaino Dr. Steffen Lüdeke Dr. Nicolas Sandon Dr. Dennis Wetzl Dr. Hans Iding Dr. Beat Wirz Prof. Dr. Michael Müller 《Chembiochem : a European journal of chemical biology》2017,18(17):1703-1706
NADP(H)‐dependent imine reductases (IREDs) are of interest in biocatalytic research due to their ability to generate chiral amines from imine/iminium substrates. In reaction protocols involving IREDs, glucose dehydrogenase (GDH) is generally used to regenerate the expensive cofactor NADPH by oxidation of d ‐glucose to gluconolactone. We have characterized different IREDs with regard to reduction of a set of bicyclic iminium compounds and have utilized 1H NMR and GC analyses to determine degree of substrate conversion and product enantiomeric excess (ee). All IREDs reduced the tested iminium compounds to the corresponding chiral amines. Blank experiments without IREDs also showed substrate conversion, however, thus suggesting an iminium reductase activity of GDH. This unexpected observation was confirmed by additional experiments with GDHs of different origin. The reduction of C=N bonds with good levels of conversion (>50 %) and excellent enantioselectivity (up to >99 % ee) by GDH represents a promiscuous catalytic activity of this enzyme. 相似文献
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综述了固体酸、固体碱和金属配合物在动态动力学拆分制备光学纯手性化合物进行外消旋化的催化机理,讨论了均相外消旋催化剂和多相外消旋催化剂在动态动力学拆分工艺中的应用,重点介绍了过渡金属配合物催化剂和生物酶配伍进行动态动力学拆分制备手性化合物的研究进展和发展趋势。 相似文献
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Ramesh N. Patel Amit Banerjee Laszlo J. Szarka 《Journal of the American Oil Chemists' Society》1996,73(11):1363-1375
Chiral intermediates were prepared by biocatalytic processes for the chemical synthesis of three pharmaceutical drug candidates.
These include (i) the synthesis of [(3R-cis)-3-(acetyloxy)-4-phenyl-2-azetidinone2 for the semi-synthesis of paclitaxel (taxol)5, an anticancer compound; (ii) synthesis of chiral (exo,exo)-7-oxabicyclo [2.2.1] heptane-2,3-dimenthanol monoacetate ester9 for the chemoenzymatic preparation of a thromboxane A2 antagonist; (iii) the enzymatic synthesis ofS-(−) 3-benzylthio-2-methylpropanoic acid, a key chiral intermediate for the synthesis of antihypertensive drugs captopril10 or zofenopril13. 相似文献
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随着手性科学的快速发展,获取手性内酯的单一对映体具有重要的研究和应用价值.酶法合成手性化合物具有催化效率高、立体选择性强、条件温和等优点,已成为目前化工领域研究和应用的热点.综述了当前主要三类酶法制备手性内酯的途径及其应用. 相似文献