pde4b-in-2

PDE4B-IN-2 (A 33) is an orally active and selective PDE4B inhibitor with an IC50 of 15 nM. PDE4B-IN-2 inhibits PDE4D (IC50=1.7 µM). PDE4B-IN-2 exhibits potent anti-inflammatory effects.

PDE4-IN-17 (compound 4e) is a potent PDE4 inhibitor. It effectively inhibits PDE4B and PDE4D with IC50 values of 10.0 nM and 15.2 nM, respectively. In SD rats, PDE4-IN-17 demonstrates good oral bioavailability (F=66%) and a relatively long half-life (t1/2=2.0 h).

LEO 39652, a dual-soft PDE4 inhibitor, demonstrates potent inhibition of PDE4 subtypes A, B, C, and D with respective IC50 values of 1.2 nM, 1.2 nM, 3.0 nM, and 3.8 nM. Additionally, it inhibits TNF-α with an IC50 of 6.0 nM, indicating its potential for topical Atopic dermatitis (AD) research [1].