3,5-Pyrazolidinedione, 4-[(2-chlorophenyl)methylene]-1-phenyl-

DOCK2-IN-1 (compound 3), a CPYPP (HY-110100) analogue, is an inhibitor of DOCK2 as well (IC50=19.1 μM). DOCK2-IN-1 binds to DOCK2 DHR-2 domain in a reversible manner to inhibits its catalytic activity. DOCK2-IN-1 blocks the activation of both chemokine receptor- and antigen receptor-mediated Rac in lymphocytes. DOCK2-IN-1 significantly suppresses chemotactic response and T cell activation[1].

DOCK2

[1] Nishikimi A, et al. Blockade of inflammatory responses by a small-molecule inhibitor of the Rac activator DOCK2. Chem Biol. 2012 Apr 20;19(4):488-97. DOI:10.1016/j.chembiol.2012.03.008