1-Phosphacephalosporin. II. Synthesis of optically active 7-substituted-1-phosphadethia-3-cephem 1-oxides |
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| Authors: | Hisao Satoh Teruji Tsuji |
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| Affiliation: | Shionogi Research Laboratories, Shionogi & Co., Ltd., Fukushima-ku, Osaka 553, Japan |
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| Abstract: | The synthesis of optically active 7-substituted-l-phosphadethia-3-cephems is described. The stereochemistry in the displacement reaction at C-4 of chiral 3-acylamino-4-acetoxy-2-azetidinones toward trivalent phosphorus nucleophiles is also discussed briefly. |
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