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本文在綜述他汀類藥物(一類對(duì)羥甲戊二酰輔酶A還原酶抑制劑)的藥理作用和臨床應(yīng)用,以及其中一個(gè)重要成員洛伐他汀的藥理研究進(jìn)展、生產(chǎn)現(xiàn)狀等的基礎(chǔ)上,認(rèn)為洛伐他汀的市場需求量還很大,甚至前景將更好。 但技術(shù)發(fā)展使社會(huì)對(duì)醫(yī)藥產(chǎn)品質(zhì)量要求越來越高,美國藥典要求洛伐他汀產(chǎn)品中雜質(zhì)總含量不超過1.0%,單雜質(zhì)含量不超過0.2%,除非能有充分的藥理數(shù)據(jù)證明雜質(zhì)成分的藥理作用與主成分一致,而且不具有其他的毒理作用。我國是洛伐他汀原料藥的主要生產(chǎn)國,為了適應(yīng)各國藥典對(duì)洛伐他汀藥品的新要求,有必要對(duì)洛伐他汀產(chǎn)品中的雜質(zhì)進(jìn)行深入研究。首先得到單體化合物,鑒定它們的結(jié)構(gòu),明確它們的性質(zhì),然后闡明這些雜質(zhì)成分是在生產(chǎn)的哪一環(huán)節(jié)產(chǎn)生的,如何減少它們的產(chǎn)生,在純化過程中如何除去它們;同時(shí)累積足夠的雜質(zhì)單體化合物,進(jìn)行藥理和毒理研究。 本文的主要研究內(nèi)容就是對(duì)洛伐他汀發(fā)酵產(chǎn)物的雜質(zhì)成分進(jìn)行了分離純化,并鑒定它們的結(jié)構(gòu)。本文以洛伐他汀提取純化最后步驟的結(jié)晶母液為原料,反復(fù)應(yīng)用硅膠柱色譜、硅膠制備TLC、反相硅膠柱色譜、半制備HPLC等方法,從中分離得到6個(gè)雜質(zhì)單體化合物;綜合運(yùn)用波譜學(xué)方法,如FT-IR、1H-NMR、13C-NMR、1H-1H COSY、HSQC、HMBC和MS等,鑒定了它們的結(jié)構(gòu)。這些化合物分別是: |
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鐵桿木蟲 (職業(yè)作家)
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木蟲 (職業(yè)作家)
木蟲 (職業(yè)作家)
木蟲 (職業(yè)作家)
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This article is a review on the pharmacological effects and clinical applications of statins (reductase inhibitors of hydroxymethyl coenzyme A ). based on the pharmacology and production status of lovastatin-one of the important member of statins, there is a great market demand, and even better prospects. The development of technology put a higher standard on the pharmaceutical products. USP has the requirement that unless there are enough evidences to prove that the impurity has the same pharmacological effects as the principal component, and still the impurity has no toxicological effects, the total content of impurities in the product should be less than 1.0%. Single impurity content should be less than 0.2%. China is the major producer of raw materials of lovastatin. In order to meet the new national pharmacopoeia requirements of lovastatin, there is a need to conduct in-depth study of impurities in lovastatin. First of all, compounds are obtained and their structures should be identified, and their properties are studied. And then make clear in reaction steps these impurities are generated. Another problem is how to reduce the production of the impurities,and how to remove them. At the same time, get enough monomer impurity in the compounds to conduct pharmacological and toxicological studies. The main idea of this paper is purification of the impurity in the fermentation products of lovastatin and identification of their structure. In this study the raw materials is the crystal liquor of lovastatin in the final step of extraction and purification. And then take measures like silica gel column chromatography, silica gel prepared by TLC, RP-silica gel column chromatography, semi-preparative HPLC and other methods to get 6 isolated compounds. And Comprehensive usage of spectrum study methods, such as FT-IR, 1H-NMR, 13C-NMR, 1H-1H COSY, HSQC, HMBC and MS can be taken to identify their structures. These compounds are: [ Last edited by ringzhu on 2011-4-7 at 12:49 ] |
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