Download PDF Opens in a new window. Article suggestions will be shown in a dialog on return to ScienceDirect. ... Please enable JavaScript to use all the features on this page. ... 2-Amino-5-(thioaryl)thiazoles are potent inhibitors of TrkA (eg, 20h, TrkA IC 50 = 0.6 nM) that show anti-proliferative effect in cellular assays. A proposed inhibitor binding mode to TrkA active site is consistent with key SAR observations. ... 2-Amino-5-(thioaryl)thiazaoles are potent ...