Endosidin-2 is an exocyst inhibitor, a cell-permeable benzylidene benzoylhydrazine, that binds to the exocyst component of the 70 kDa (EXO70) subunit of the exocyst complex (Kd = 253 μM, EXO70A1).Endosidin-2 disrupts protein translocation between the endosomes and plasma membrane, thereby facilitating translocation of proteins to the vesicle for degradation. It also inhibits recirculation of endocytosed transferrin to the plasma membrane in HeLa cells and targets multiple isoforms of mammalian EXO70, leading to dysregulation of exocytosis.Endosidin2 can be used as a tool molecule to study cytosolization.

hCES2-IN-1 (Compound 24) is a reversible, selective inhibitor of the human carboxylesterase 2 (hCES2) enzyme, exhibiting an IC50 of 6.72 μM. This compound diminishes hCES2 levels in vivo and demonstrates efficacy in alleviating irinotecan-induced delayed diarrhea and DSS-induced ulcerative colitis [1].

hCES2A-IN-1 (compound 20w), a potent hCES2A inhibitor derived from bysspectin A, exhibits an IC50 value of 1.6 nM, demonstrating an approximately 1000-fold potency enhancement compared to its lead compound, bysspectin A [1].

NSC348884 is a nucleophosmin inhibitor disrupts oligomer formation and induces apoptosis, inhibits cell proliferation at an IC50 of 1.7-4.0 μM in distinct cancer cell lines.

Coumestrol that existed in soybean products suppresses the proliferation of ES2 cells (IC50: 50 μM). It exhibits activities against neurological disorders, cancers and autoimmune diseases.