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3Â¥2008-05-20 22:31:13
napolun1025
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Abstract: Cefixime side chain of Ester is synthesized basically with cefixime acid, and the promotion of DM-phosphate ester as a raw material for the synthesis, the shortcomings of this approach is low yield. The alternative to triphenylphosphine-phosphate ester to cefixime active sulfur Synthesis of literature are rarely reported. This paper alternative to triphenylphosphine-phosphate ester of cefixime active sulfur ester, to explore the process of synthesis, reduce costs, while increasing product yield and purity. The technology of the industrial application of a certain value. Key words: cefixime side chain of Ester, synthesis, cefixime acid; DM; triphenylphosphine |
2Â¥2008-05-19 21:27:18













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