title: Design, synthesis and biological evaluation of new potent and highly selective ROS1-tyrosine kinase inhibitor.
abstract: ROS1 protein is a receptor tyrosine kinase that has been reported mainly in meningiomas and astrocytomas, and until now, there is no selective inhibitor for this kinase. In this study, we illustrate for the synthesis of a highly potent and selective inhibitor for ROS1 kinase. The synthesized compound 1 was tested initially at a single dose concentration of 10 microM over 45 different kinases. At this concentration, a 94% inhibition of the enzymatic activity of ROS1 kinase was observed, while the inhibition in activity was below 30% in all of the other kinases. The pyrazole compound 1 was further tested in a 10-dose IC(50) mode and showed an IC(50) value of 199 nM for ROS1 kinase. The compound 1 can be used as a promising lead for the development of new selective inhibitors for ROS1 kinase, and it may open the way for new selective therapeutics for astrocytomas.
authors: Department of Chemistry, Research Institute for Basic Sciences, College of Science, Kyung Hee University, Seoul 130-701, Republic of Korea.
authors: Byung Sun
authors: BS
authors: Park
authors: Ibrahim M
authors: IM
authors: El-Deeb
authors: Kyung Ho
authors: KH
authors: Yoo
authors: Chang-Hyun
authors: CH
authors: Oh
authors: Seung Joo
authors: SJ
authors: Cho
authors: Dong Keun
authors: DK
authors: Han
authors: Hye-Seung
authors: HS
authors: Lee
authors: Jae Yeol
authors: JY
authors: Lee
authors: So Ha
authors: SH
authors: Lee
mesh_terms: D000970:Antineoplastic Agents / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology; D001254:Astrocytoma / Q000188:drug therapy; D015195:Drug Design; D006801:Humans; D047428:Protein Kinase Inhibitors / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology; D011505:Protein-Tyrosine Kinases / Q000037:antagonists & inhibitors* / Q000378:metabolism; D011518:Proto-Oncogene Proteins / Q000037:antagonists & inhibitors* / Q000378:metabolism; D011720:Pyrazoles / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology; D011743:Pyrimidines / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology
chemical_list: D000970:Antineoplastic Agents; D047428:Protein Kinase Inhibitors; D011518:Proto-Oncogene Proteins; D011720:Pyrazoles; D011743:Pyrimidines; C031280:pyrazole; D011505:Protein-Tyrosine Kinases; C062333:ROS1 protein, human