- Synthesis and evaluation of imidazole-4,5-and pyrazine-2,3-dicarboxamides targeting dengue and yellow fever virus
-
The results of a high-throughput screening assay using the dengue virus-2 replicon showed that the imidazole 4,5-dicarboxamide (I45DC) derivative (15a) has a high dengue virus inhibitory activity. Based on 15a as a lead compound, a novel class of both disubstituted I45DCs and the resembling pyrazine 2,3-dicarboxamides (P23DCs) were synthesized. Here, we report on their in vitro inhibitory activity against dengue virus (DENV) and yellow fever virus (YFV). Some of these first generation compounds have shown activity against both viruses in the micromolar range. Within this series, compound 15b was observed to display the highest antiviral potency against YFV with an EC50 Combining double low line 1.85 μM. In addition, compounds 20a and 20b both potently inhibited replication of DENV (EC50 Combining double low line 0.93 μM) in Vero cells.
- Saudi, Milind,Zmurko, Joanna,Kaptein, Suzanne,Rozenski, Jef,Neyts, Johan,Van Aerschot, Arthur
-
p. 529 - 539
(2015/01/09)
-
- Purinenucleoside derivative modified in 8-position and medical use thereof
-
The present invention provides an 8-modified purinenucleoside derivative which is useful for diseases associated with an abnormality of plasma uric acid level. An 8-modified purinenucleoside derivative represented by the following formula (I), a prodrug thereof or a pharmaceutically acceptable salt thereof, or a hydrate or solvate thereof, is useful for the prevention or treatment of gout, hyperuricemia, urinary lithiasis, hyperuricemic nephropathy or the like. In the formula, n is 1 or 2; RA is a hydrogen atom or a hydroxyl group; R1 is a hydrogen atom, a hydroxyl group, a thiol group, an amino group or a chlorine atom; ring J represents an optionally substituted 2-naphthyl group, or a group represented by the following general formula (II) wherein Y represents a single bond or a connecting group; ring Z represents an optionally substituted aryl group or heteroaryl group or the like; and R2 to R4, P1 and Q represents a halogen atom, a cyano group or the like.
- -
-
Page/Page column 35-36
(2010/11/28)
-