发明公开
- 专利标题： 7-(S)-acylaminocephalosporin sulfones and process
- 专利标题（中）： 7-（S） - 酰氨基头孢菌素砜和方法
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申请号： EP83306940申请日： 1983-11-14
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公开(公告)号： EP0109301A3公开(公告)日： 1985-05-22
- 发明人: Hall, David Alfred
- 申请人： ELI LILLY AND COMPANY
- 专利权人： ELI LILLY AND COMPANY
- 当前专利权人： ELI LILLY AND COMPANY
- 优先权： US442077 19821116
- 主分类号： C07D501/04
- IPC分类号： C07D501/04 ; C07D501/26
摘要：
This invention encompasses 7-(S)-acylamino-3-acetoxymethyl-3-cephem-4-carboxylic acid sulfones and the epimerization process for making them. The epimerization process empolys an organic nitrogen base reagent having a pKa between about 9.0 to about 11.5. The compounds of this invention are intermediates in the synthesis of 1-oxa-β-lactam antibiotics.
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