EC33, a selective aminopeptidase A (APA) inhibitor, blocks the pressor response of exogenous Ang II and does not cross the blood-brain barrier, making it a potential candidate for salt-dependent hypertension research [1].
K134 is an inhibitor of phosphodiesterase 3. The IC50s of K134 for PDE3A, PDE3B, PDE5, PDE2 and PDE4 are 0.1, 0.28, 12.1, >300 and >300 μM, respectively.