Improved synthesis of imatinib mesylate
doi: 10.3969/j.issn.1006-0111.2014.04.014
- Received Date: 2013-03-12
- Rev Recd Date: 2013-12-05
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Key words:
- imatinib mesylate /
- aqueous phase synthesis /
- improved synthesis
Abstract: Objective To obtain the improved synthesis of imatinib mesylate. Methods 4-[(4-methyl-piperazin-1-yl) methyl] benzoyl chloride dihydrochloride and 4-methyl-N3-[4-(3-pyridyl) pyrimidin-2-yl]-1,3-phenylenediamine were used as starting raw material to perform a condensation reaction in the aqueous phase to give imatinib free base, which was then neutralized with methanesulfonic acid to obtain the novel antineoplastic tyrosinase inhibitor imatinib mesylate by the use of a two-step reaction. Results The improved synthesis was considered to have the advantages of low cost, easy post-processing, high purity, high yield and environmental pollution with the HPLC purity≥99.7% and the single impurity<0.1%. Conclusion The total yield of the novel method was 81.5%, having an enough broad industrial production prospect.The targeted compound structure was confirmed by 1H NMR and ESI-MS.
Citation: | XU Xiaoxia, MIN Tao, SHI Weilong. Improved synthesis of imatinib mesylate[J]. Journal of Pharmaceutical Practice and Service, 2014, 32(4): 290-293. doi: 10.3969/j.issn.1006-0111.2014.04.014 |