lavendustin A (RG-14355) is a potent, cell-permeable inhibitor of epidermal growth factor receptor (EGFR) tyrosine kinase.

4-Hydroxycinnamamide has antioxidant activity. 4-Hydroxycinnamamide derivatives are specific inhibitors of tyrosine-specific protein kinases.

Cinrebafusp alfa (PRS 343) is an anticalin-based bispecific drug with high affinity for both CD137/HER2, displaying dissociation constants (Kd) of 0.3 nM to recombinant human HER2 and 5 nM to human monomeric CD137 (4-1BB). It promotes T-cell costimulation via tumor-localized, HER2-mediated 4-1BB clustering and activation, thereby enhancing T-cell receptor-driven responses and facilitating tumor cell eradication. This compound shows promising potential in research concerning HER2-positive solid tumors [1] [2].

Tyrphostin A25 (Tyrphostin AG 82) is a specific EGFR tyrosine kinase inhibitor and GPR35 agonist with an IC50 value of 0.94 μM for GPR35 and an EC50 value of 5.3 μM for GPR35.

PD 089828 is a competitive inhibitor of the receptor tyrosine kinases FGFR1, PDGFRβ, and EGFR (IC50s = 0.15, 1.76, and 5.47 µM, respectively) and a noncompetitive inhibitor of the nonreceptor tyrosine kinase c-Src (IC50 = 0.18 µM)