(5Z)-5-{[1-(1-benzofuran-2-ylcarbonyl)piperidin-4-yl]methylidene}-4-(prop-2-yn-1-ylamino)-1,3-thiazol-2(5H)-one

(5Z)-5-({1-[(5-chloro-1-benzofuran-2-yl)carbonyl]piperidin-4-yl}methylidene)-4-(prop-2-yn-1-ylamino)-1,3-thiazol-2(5H)-one

(5Z)-5-({1-[2,4-bis(trifluoromethyl)benzyl]piperidin-4-yl}methylidene)-4-(prop-2-yn-1-ylamino)-1,3-thiazol-2(5H)-one hydrochloride

(Z)-5-((1-(4-chloro-2-(trifluoromethyl)benzyl)piperidin-4-yl)methylene)-4-(prop-2-yn-1-ylamino)thiazol-2(5H)-one

(Z)-5-((1-(4-bromo-2-(trifluoromethyl)benzyl)piperidin-4-yl)methylene)-4-(prop-2-yn-1-ylamino)thiazol-2(5H)-one