PDE5-IN-3 (compound 11j) is a potent inhibitor of PDE5 (IC50: 1.57 nM) and has a moderate inhibitory effect on EGFR (IC50: 5.827 µM). It markedly inhibits the Wnt/beta-catenin pathway (IC50: 1286.96 ng/mL), induces the intrinsic apoptotic mitochondrial pathway in HepG2 cells, and exhibits significant antitumor effects.
