Synthesis of New N-Arylpyrimidin-2-amine Derivatives Using a Palladium Catalyst
作者:Ibrahim El-Deeb、Jae Ryu、So Lee
DOI:10.3390/molecules13040818
日期:——
New N-aryl-4-(pyridin-3-yl)pyrimidin-2-amine derivatives were synthesizedfrom the corresponding amines, applying optimized Buchwald-Hartwig aminationconditions using dichlorobis(triphenylphosphine)Pd(II), xantphos and sodium tertbutoxidein refluxing toluene under a nitrogen atmosphere. The target N-aryl derivativeswere obtained in moderate to good yields ranging from 27% to 82%. The proceduredescribed could be widely employed for the preparation of new heterocyclic compounds.The structures of the new compounds were confirmed by FT-NMR, FT-IR and elementalanalysis.
Design and synthesis of new anticancer pyrimidines with multiple-kinase inhibitory effect
作者:Ibrahim Mustafa El-Deeb、So Ha Lee
DOI:10.1016/j.bmc.2010.04.037
日期:2010.6.1
A new series of N-substituted-2-aminopyrimidines based on the '4-(pyridin-3-yl)pyrimidin-2-amine' scaffold of Imatinib has been designed and synthesized. A selected group from the target compounds was tested over a panel of 60 cancer cell lines at a single dose concentration of 10 mu M, and the two most active compounds, 25b and 30, were further tested in a five-dose testing mode to determine their IC50 values over the 60 cell lines. Compound 30 has showed good potencies and high efficacies, and was accordingly tested at a single dose concentration of 10 mu M over a panel of 54 kinases. At this concentration, the compound has showed multiple inhibitions over a number of oncogenic kinases, including ABL1, AKT1, LCK, C-SRC, PIM1, FLT3, FYN, and KDR. A molecular modeling study was made by docking of the most active compound 30 and its inactive analog 29 into the kinase domain of ABL1 to investigate their possible binding interactions. (C) 2010 Elsevier Ltd. All rights reserved.