[EN] ARTEMISININ-BASED PEROXIDE COMPOUNDS AS BROAD SPECTRUM ANTI-INFECTIVE AGENTS [FR] COMPOSES DE PEROXYDE A BASE D'ARTEMISININE TENANT LIEU D'AGENTS ANTI-INFECTIEUX A LARGE SPECTRE
Structure−Activity Relationships of the Antimalarial Agent Artemisinin. 8. Design, Synthesis, and CoMFA Studies toward the Development of Artemisinin-Based Drugs against Leishmaniasis and Malaria
摘要:
Artemisinin (1) and its analogues have been well studied for their antimalarial activity. Here we present the antimalarial activity of some novel C-9-modified artemisinin analogues synthesized using artemisitene as the key intermediate. Further, antileishmanial activity of more than 70 artemisinin derivatives against Leishmania donovani promastigotes is described for the first time. A comprehensive structure-activity relationship study using CoMFA is discussed. These analogues exhibited leishmanicidal activity in micromolar concentrations, and the overall activity profile appears to be similar to that against malaria. Substitution at the C-9beta position was shown to improve the activity in both cases. The 10-deoxo derivatives showed better activity compared to the corresponding lactones. In general, compounds with C-9alpha substitution exhibited lower antimalarial as well as antileishmanial activities compared to the corresponding C-9beta analogues. The importance of the peroxide group for the observed activity of these analogues against leishmania was evident from the fact that 1-deoxyartemisinin analogues did not exhibit antileishmanial activity. The study suggests the possibility of developing artemisinin analogues as potential drug candidates against both malaria and leishmaniasis.
Structure−Activity Relationships of the Antimalarial Agent Artemisinin. 8. Design, Synthesis, and CoMFA Studies toward the Development of Artemisinin-Based Drugs against Leishmaniasis and Malaria
作者:Mitchell A. Avery、Kannoth M. Muraleedharan、Prashant V. Desai、Achintya K. Bandyopadhyaya、Marise M. Furtado、Babu L. Tekwani
DOI:10.1021/jm030181q
日期:2003.9.1
Artemisinin (1) and its analogues have been well studied for their antimalarial activity. Here we present the antimalarial activity of some novel C-9-modified artemisinin analogues synthesized using artemisitene as the key intermediate. Further, antileishmanial activity of more than 70 artemisinin derivatives against Leishmania donovani promastigotes is described for the first time. A comprehensive structure-activity relationship study using CoMFA is discussed. These analogues exhibited leishmanicidal activity in micromolar concentrations, and the overall activity profile appears to be similar to that against malaria. Substitution at the C-9beta position was shown to improve the activity in both cases. The 10-deoxo derivatives showed better activity compared to the corresponding lactones. In general, compounds with C-9alpha substitution exhibited lower antimalarial as well as antileishmanial activities compared to the corresponding C-9beta analogues. The importance of the peroxide group for the observed activity of these analogues against leishmania was evident from the fact that 1-deoxyartemisinin analogues did not exhibit antileishmanial activity. The study suggests the possibility of developing artemisinin analogues as potential drug candidates against both malaria and leishmaniasis.
[EN] ARTEMISININ-BASED PEROXIDE COMPOUNDS AS BROAD SPECTRUM ANTI-INFECTIVE AGENTS<br/>[FR] COMPOSES DE PEROXYDE A BASE D'ARTEMISININE TENANT LIEU D'AGENTS ANTI-INFECTIEUX A LARGE SPECTRE
申请人:UNIV MISSISSIPI
公开号:WO2003095444A1
公开(公告)日:2003-11-20
Described herein is the synthesis, bioassay results and utility of new C-9 and C-10 substituted artemisinin derivatives with easily functionalizable groups attached to the artemisinin skeleton through carbon chain or heteroatoms. Described also is the demonstration of this class of compounds for their broad-spectrum anti-parasitic activity. Certain of these analogs possess noticeable cytotoxicity deliberately focused on treatment of cancerous diseases.