Discovery of O-(3-carbamimidoylphenyl)-l-serine amides as matriptase inhibitors using a fragment-linking approach

Autor: Rajeev Goswami, Subhendu Mukherjee, Gerd Wohlfahrt, Jwala Nagaraj, Krishnaprasad Subbarao, Chakshusmathi Ghadiyaram, Narasimha Rao Krishnamurthy, Leena Khare Satyam, Sreevalsam Gopinath, Hosahalli Subramanya, Murali Ramachandra
Rok vydání: 2015
Předmět:
Zdroj: Bioorganic & Medicinal Chemistry Letters. 25:616-620
ISSN: 0960-894X
DOI: 10.1016/j.bmcl.2014.12.008
Popis: Matriptase is a cell-surface trypsin-like serine protease of epithelial origin, which cleaves and activates proteins including hepatocyte growth factor/scatter factor and proteases such as uPA, which are involved in the progression of various cancers. Here we report a fragment-linking approach, which led to the discovery of O-(3-carbamimidoylphenyl)-l-serine amides as potent matriptase inhibitors. The co-crystal structure of one of the potent inhibitors, 6 in complex with matriptase catalytic domain validated the working hypothesis guiding the development of this congeneric series and revealed the structural basis for matriptase inhibition. Replacement of a naphthyl group in 6 with 2,4,6-tri-isopropyl phenyl resulted in 10 with improved matriptase inhibition, which exhibited significant primary tumor growth inhibition in a mouse model of prostate cancer. Compounds such as 10, identified using a fragment-linking approach, can be explored further to understand the role of matriptase as a drug target in cancer and inflammation.
Databáze: OpenAIRE