@misc{jones_synthesis_biological_2008, author={Jones, M.A., Abell, A.D., Morton, J.D., Coxon, J.M., McNabb, S.B., Lee, H.Y.-Y., Aitken, S.G., Mehrtens, J.M., Robertson, L.J.G., Neffe, A.T., Gately, K., Wood, J.M.}, title={Synthesis, biological evaluation and molecular modeling of N-heterocyclic dipeptide aldehydes as selective calpain inhibitors}, year={2008}, howpublished = {journal article}, doi = {https://doi.org/10.1016/j.bmc.2008.05.048}, abstract = {A series of N-heterocyclic dipeptide aldehydes 4–13 have been synthesised and evaluated as inhibitors of ovine calpain 1 (o-CAPN1) and ovine calpain 2 (o-CAPN2). 5-Formyl-pyrrole 9 (IC50 values of 290 and 25 nM against o-CAPN1 and o-CAPN2, respectively) was the most potent and selective o-CAPN2 inhibitor, displaying >11-fold selectivity. The amino acid sequences of o-CAPN1 and o-CAPN2 have been determined. Because of the lack of available structural information on the ovine calpains, in silico homology models of the active site cleft of o-CAPN1 and o-CAPN2 were developed based on human calpain 1 (h-CAPN1) X-ray crystal structure (PDB code 1ZCM). These models were used to rationalise the observed SAR for compounds 4–13 and the selectivity observed for 9. The o-CAPN2 selective inhibitor 9 (CAT0059) was assayed in an in vitro ovine lens culture system and shown to successfully protect the lens from calcium-induced opacification.}, note = {Online available at: \url{https://doi.org/10.1016/j.bmc.2008.05.048} (DOI). Jones, M.; Abell, A.; Morton, J.; Coxon, J.; McNabb, S.; Lee, H.; Aitken, S.; Mehrtens, J.; Robertson, L.; Neffe, A.; Gately, K.; Wood, J.: Synthesis, biological evaluation and molecular modeling of N-heterocyclic dipeptide aldehydes as selective calpain inhibitors. Bioorganic & Medicinal Chemistry. 2008. vol. 16, no. 14, 6911-6923. DOI: 10.1016/j.bmc.2008.05.048}}