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- Title
Optimization of Bipyridinyl Pyrazole Scaffolds via Design, Synthesis and Screening of a New Series of ROS1 Kinase-modulating Compounds.
- Authors
Al-Sanea, Mohammad M.; Abdelazem, Ahmed Z.; Yoo, Kyung Ho; Sim, Taebo; Lee, So Ha; Park, Byung Sun; Tae, Jin Sung; Selim, Khalid B.
- Abstract
A series of rationally designed ROS1 tyrosine kinase inhibitors 6a-9b with bipyridinyl pyrazole scaffold was synthesized and screened. The scaffold itself has showed an exclusive selectivity profile over ROS1 closely related kinases, ALK and c-Met. The aim of this study was to further explore the structure-activity relationships ( SAR) of the bipyridinyl pyrazole core structure, and to improve its ROS1 inhibitory potency. The rational of this study was to explore the nature of the proposed binding site for the pyrazole NH substituents. Careful selections of pyrazole NH substituent groups along with their regioisomers were considered. The compounds exhibited high degree of potency, IC50 values of 21-159 nM. A detailed SAR of bipyridinyl pyrazole scaffold has been finally well established and the virtual screening strategy, through molecular docking, has been performed for this type of ROS1 kinase inhibitors and the docked poses along with the activity data have gone in consistent with SAR specifications.
- Subjects
PYRAZOLES; HETEROCYCLIC compounds synthesis; TISSUE scaffolds; KINASE inhibitors; CHROMOSOME abnormalities; CANCER treatment; STRUCTURE-activity relationships; ETHYL acetate; THERAPEUTICS
- Publication
Bulletin of the Korean Chemical Society, 2015, Vol 36, Issue 1, p305
- ISSN
0253-2964
- Publication type
Article
- DOI
10.1002/bkcs.10077