1005322-54-2Relevant academic research and scientific papers
TETRIACYCLODIPYRANYL COUMARINS AND THE ANTI-HIV AND ANTI-TUBERCULOSIS USES THEREOF
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Page/Page column 63, (2010/08/18)
The present invention relates to tctracyclodipyrano-coumarin compounds of general formula (I), wherein the substituents are defined herein. These compounds exihibit dual biological activities of anti human immunodeficiency virus type 1 (HIV-1) infection a
Chemical library and structure-activity relationships of 11-demethyl-12-oxo calanolide A analogues as anti-HIV-1 agents
Ma, Tao,Liu, Li,Xue, Hai,Li, Li,Han, Chunyan,Wang, Lin,Chen, Zhiwei,Liu, Gang
, p. 1432 - 1446 (2008/12/22)
(+)-Calanolide A (1) as a natural product was previously found as an inhibitor of HIV-1 reverse transcriptase. In our further investigation of its template, racemic 11-demethyl-12-oxo calanolide A (15), which had two fewer chiral carbon centers at the C-11 and C-12 positions than (+)-calanolide A, had a comparably inhibitory activity and better therapeutic index (EC50 = 0.11 μM, TI = 818) against HIV-1 in vitro. A library based on its structural core was then designed and synthesized with introduction of nine diversity points in this article. The evaluations of anti-HIV-1 activity in vitro concluded their structure-activity relationships (SARs). A novel compound (10-bromomethyl-11-demethyl-12-oxo calanolide A, 123) was identified to have much higher inhibitory potency and therapeutic index (EC50 = 2.85 nM, TI > 10,526) than those of the class compound against HIV-1. This finding provided a very important clue that modifications of the C ring at the C-10 position may be conducted to obtain drug candidates with better activity against HIV-1.
