Abstract
A convenient method has been developed for the synthesis of imatinib and two of its intermediates. N-(2-Methyl-5-nitrophenyl)-4-(3-pyridyl)-2-pyrimidinamine, obtained from 2-(methylsulfonyl)-4-(3-pyridyl)pyrimidine via nucleophilic substitution, was reduced by N2H4·H2O/FeCl3·6H2O/C in 92% yield. The resulting amine was condensed with 4-[(4-methylpiperazin-1-yl)methyl]benzoic acid dihydrochloride, which was prepared from 4-(chloromethyl)benzonitrile via substitution and hydrolysis reactions, to provide the final product imatinib in good yield and high purity.
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Acknowledgments
We gratefully acknowledge the financial support from the Shanghai Science and Technology Mission (10ZR1409600) and the Program for New Century Excellent Talents in University (NCET). We also thank the Laboratory of Organic Functional Molecules, the Sino-French Institute of ECNU for support.
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Liu, H., Xia, W., Luo, Y. et al. A novel synthesis of imatinib and its intermediates. Monatsh Chem 141, 907–911 (2010). https://doi.org/10.1007/s00706-010-0334-0
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DOI: https://doi.org/10.1007/s00706-010-0334-0