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Abstract (+)-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 (EC 50 = 0.11 microM, 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 ......
来源出处
Tao MA, Li LIU, Hai XUE, Li LI, Chunyan HAN, Lin WANG, Zhiwei CHEN, Gang LIU*, …
http://218.241.158.84:8088/Research/Articles/index216.shtml
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