“…Several significant small organic molecules have been designed and synthesized, as shown in Figure 2 , with promising IC 50 values. Herein, the concrete synthetic features and the analytic properties for structural identification are described in the order of diarylacrylonitriles [ 38 ], pyridazinones [ 39 ], aryl 3-acryloamides [ 40 ], dihydro-β-carboline [ 41 ], benzisothiazolinones [ 42 ], triazolothiadiazoles [ 43 ], 2-(2-phenylhydrazinylidene)alkanoates [ 44 ], 2-phenyl-benzo[ d ]oxazole-7-carboxamide [ 45 ], 2-phenyl-benzofuran-7-carboxamide [ 46 ], 2-phenylthiazoles [ 47 ], 2, 5-disubstitued thiadiazole [ 48 ], and thiadiazolidinedione [ 49 ].…”