To provide a compound having an excellent cysteine protease inhibitory effect, and to provide a drug for treatment or prevention of the disease selected from the group consisting of osteoporosis, osteoarthritis, chronic rheumatoid arthritis, Paget's disease of bone, hypercalcemia, bone metastasis of cancer, and ostealgia. A compound represented by formula (1) or a pharmaceutically acceptable salt thereof, or a drug or pharmaceutical composition containing the same as an effective component.
Optimization of dipeptidic inhibitors of cathepsin L for improved Toxoplasma gondii selectivity and CNS permeability
作者:Jeffery D. Zwicker、Nicolas A. Diaz、Alfredo J. Guerra、Paul D. Kirchhoff、Bo Wen、Duxin Sun、Vern B. Carruthers、Scott D. Larsen
DOI:10.1016/j.bmcl.2018.03.020
日期:2018.6
cathepsin L. Starting from a known inhibitor of human cathepsin L, and guided by structure-based design, we were able to modulate the selectivity for Toxoplasma vs human CPL by nearly 50-fold while modifying physiochemical properties to be more favorable for metabolic stability and CNS penetrance. The overall potency of our inhibitors towards TgCPL was improved from 2 μM to as low as 110 nM and we successfully