YAP/TAZ-TEAD-IN-2 (Compound 51) is a YAP/TAZ-TEAD inhibitor that inhibits the interaction between YAP/TAZ and TEAD. YAP/TAZ-TEAD-IN-2 suppresses the transcriptional activity of TEAD, with an IC 50 of 1.2 nM. YAP/TAZ-TEAD-IN-2 inhibits YAP/TAZ-TEAD target genes expression (Cyr61, CTGF , AXL and Survivin ) and breast cancer cell proliferation.