| Synthesis, stability and pharmacological evaluation of a novel codrug consisting of lamivudine and ursolic acid. | |
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MedLine Citation:
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PMID: 22085635 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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A novel codrug (LMX) was obtained from lamivudine (LMV) and ursolic acid (UA) coupled with ethyl chloroacetate through an amide and ester linkage. The structure of LMX was confirmed by (1)H NMR, (13)C NMR, IR and HRMS. Herein, the in vitro non-enzymatic and enzymatic hydrolysis and in vivo pharmacological activities of LMX were studied. The kinetics of hydrolysis of LMX was studied in aqueous solution of pH 1-10, 80% buffered human plasma and in the presence of lipase from Porcine pancreas (EC 3.1.1.3) at 37°C. It is found that LMX hydrolysis rate was significantly faster in lipase with half-life of 1.4h compared to pH 7.4 phosphate buffer (t(1/2) 11.2h) and buffered human plasma (t(1/2) 5.4h). The decomposition rates in aqueous solution (pH 1-10) showed a U-shaped curve. LMX was comparatively stable between pH 3 and 6 (half-life >40h). Pharmacological studies indicated that LMX had the dual action of anti-hepatitis B virus activity and hepatoprotective effects against acute liver injury. These findings suggest that LMX could be a promising candidate agent for the treatment of hepatitis. |
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Authors:
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Yan Zhong; Zhaohui Dai; Yi Xu; Yanbo Teng; Bin Wu |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-11-9 |
Journal Detail:
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Title: European journal of pharmaceutical sciences : official journal of the European Federation for Pharmaceutical Sciences Volume: - ISSN: 1879-0720 ISO Abbreviation: - Publication Date: 2011 Nov |
Date Detail:
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Created Date: 2011-11-16 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9317982 Medline TA: Eur J Pharm Sci Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
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Copyright © 2011. Published by Elsevier B.V. |
Affiliation:
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School of Chemistry and Chemical Engineering, Southeast University, Nanjing 210096, PR China. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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