Synthesis and in vitro urease inhibitory activity of N,N′-disubstituted thioureas
作者:Khalid Mohammed Khan、Farzana Naz、Muhammad Taha、Ajmal Khan、Shahnaz Perveen、M.I. Choudhary、Wolfgang Voelter
DOI:10.1016/j.ejmech.2014.01.001
日期:2014.3
Thiourea derivatives (1–38) were synthesized and evaluated for their urease inhibition potential. The synthetic compounds showed a varying degree of in vitro urease inhibition with IC50 values 5.53 ± 0.02–91.50 ± 0.08 μM, most of which are superior to the standard thiourea (IC50 = 21.00 ± 0.11 μM). In order to ensure the mode of inhibition of these compounds, the kinetic study of the most active compounds
A simple and straightforward synthesis of phenyl isothiocyanates, symmetrical and unsymmetrical thioureas under ball milling
作者:Ze Zhang、Hao-Hao Wu、Ya-Jun Tan
DOI:10.1039/c3ra43252a
日期:——
anilines were efficiently transformed into isothiocyanates (in presence of 5.0 equiv. CS2) or symmetricalthioureas (in presence of 1.0 equiv. CS2), without using any other harsh or toxic decomposition reagent. Some in situ generated isothiocyanates can directly “click” with other amines to afford unsymmetricalthioureas.
α-Chymotrypsin inhibitors of thiourea class are reported that could be potent inhibitors of proteases, elastases, proteasomes, NS3 and NS4 serine protease of hepatitis C virus, dengue virus, etc. Compounds
1
-
22,
which are belong to thiourea class, showed good inhibition. Their kinetics study and cytotoxicity profiles showed all type of inhibition except uncompetitive-type inhibition and no cytotoxicity except few compounds. Competitive type of inhibitors could inhibit other α-chymotrypsin-like serine proteases, which are therapeutics target.
Development of (4-methoxyphenyl)-1H-tetrazol-5-amine regioisomers as a new class of selective antitubercular agents
1b-9b) were synthesized from their corresponding thiourea analogues (1-9). The synthesis pathway was confirmed by an X-ray crystallographic studies of 1a, 1b and 5a. Title derivatives were tested for their in vitro antitubercular activity against standard, "wild-type" and atypical mycobacteria. The highest therapeutic potential was attributed to isomeric N-(bromophenyl)tetrazoles 8a and 9a. Their growth-inhibitory