Journal
BIOORGANIC & MEDICINAL CHEMISTRY LETTERS
Volume 55, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.bmcl.2021.128451
Keywords
JAK1; JAK1 inhibitor; 4-(1; 5-triazole)-pyrrolopyrimidine; Molecular docking study; Kinase inhibitor
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Funding
- GIST Research Institute (GRI) IIBR grant - GIST in 2021
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In this study, novel 4-(1,5or 2,5-triazole)-pyrrolopyrimidine derivatives with aromatic moieties were synthesized as JAK1 inhibitors, and an in vitro enzyme assay was used to evaluate the JAK inhibitory effects. Among these JAK1 inhibitors, compound 23a showed high JAK1 selectivity with a key interaction between the iodine atom of compound 23a and His-885 of hJAK1.
JAK inhibitors have been considered as useful targets for the treatment of related diseases. However, firstgeneration JAK inhibitors have side effects such as anemia, thrombocytopenia, neutropenia and headaches which have been suggested to result from high JAK2 inhibition. Second-generation JAK inhibitors with more specific JAK isozyme inhibition have been studied to eliminate these adverse effects. In this study, novel 4-(1,5or 2,5-triazole)-pyrrolopyrimidine derivatives with aromatic moieties were synthesized as JAK1 inhibitors, and an in vitro enzyme assay was used to evaluate the JAK inhibitory effects. Among these JAK1 inhibitors, the compound 23a showed an IC50 level of 72 nM, as well as being selective against other JAKs by 12 times or more: the results of molecular docking studies suggested that the high JAK1 selectivity resulted from a key interaction between the iodine atom of compound 23a and His-885 of hJAK1.
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