Benzouracil–coumarin–arene conjugates as inhibiting agents for chikungunya virus
摘要:
Chikungunya virus (CHIKV) is an arbovirus that was first recognized in an epidemic form in East Africa in 1952-1953. The virus is primarily transmitted through mosquitoes and the resulting disease, chikungunya fever, is found in nearly 40 countries. Neither an effective vaccine nor a specific antiviral drug exists for treatments of chikungunya fever. Thus 22 new conjugated compounds of uracil-coumarin-arene were designed and synthesized as potential inhibiting agents. Their chemical structures were determined unambiguously by spectroscopic methods, including single-crystal X-ray diffraction crystallography. The three units in these conjugates were connected by specially designed -SCH2- and -OOSO2- joints. Five of these new conjugates were found to inhibit CHIKV in Vero cells with significant potency (ECK50 = 10.2-19.1 mu M) and showed low toxicity (CC50 = 75.2-178 mu M). The selective index values were 8.8-11.5 for three conjugates. By analysis of the data from the anti-viral assays, the structure-activity relationship is derived on the basis of the nature of the uracil, the functional groups attached to the arene, and the joints between the ring units. (C) 2015 Elsevier B.V. All rights reserved.
Benzouracil–coumarin–arene conjugates as inhibiting agents for chikungunya virus
摘要:
Chikungunya virus (CHIKV) is an arbovirus that was first recognized in an epidemic form in East Africa in 1952-1953. The virus is primarily transmitted through mosquitoes and the resulting disease, chikungunya fever, is found in nearly 40 countries. Neither an effective vaccine nor a specific antiviral drug exists for treatments of chikungunya fever. Thus 22 new conjugated compounds of uracil-coumarin-arene were designed and synthesized as potential inhibiting agents. Their chemical structures were determined unambiguously by spectroscopic methods, including single-crystal X-ray diffraction crystallography. The three units in these conjugates were connected by specially designed -SCH2- and -OOSO2- joints. Five of these new conjugates were found to inhibit CHIKV in Vero cells with significant potency (ECK50 = 10.2-19.1 mu M) and showed low toxicity (CC50 = 75.2-178 mu M). The selective index values were 8.8-11.5 for three conjugates. By analysis of the data from the anti-viral assays, the structure-activity relationship is derived on the basis of the nature of the uracil, the functional groups attached to the arene, and the joints between the ring units. (C) 2015 Elsevier B.V. All rights reserved.
Discovery, Biological Evaluation, and Structure–Activity and −Selectivity Relationships of 6′-Substituted (<i>E</i>)-2-(Benzofuran-3(2<i>H</i>)-ylidene)-<i>N</i>-methylacetamides, a Novel Class of Potent and Selective Monoamine Oxidase Inhibitors
The use of selective inhibitors of monoamineoxidase A (MAO-A) and B (MAO-B) holds a therapeutic relevance in the treatment of depressive disorders and Parkinson’s disease (PD), respectively. Here, the discovery of a newclass of compounds acting as monoamineoxidaseinhibitors (MAO-Is) and bearing a 6′-substituted (E)-2-(benzofuran-3(2H)-ylidene)-N-alkylacetamide skeleton is reported. 6′-Sulfonyloxy