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Sumitomo Chemical Co Ltd
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Sumitomo Chemical Co Ltd
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Priority claimed from JP2493065Aexternal-prioritypatent/JPS4945387B1/ja
Priority claimed from JP2492965Aexternal-prioritypatent/JPS4945386B1/ja
Application filed by Sumitomo Chemical Co LtdfiledCriticalSumitomo Chemical Co Ltd
Publication of ES325664A1publicationCriticalpatent/ES325664A1/es
Un procedimiento para la preparacion de compuestos semisin-teticos intermedios en la produccion de cefalosporinas, pe- nicilinas y antibioticos relacionados de beta-lactama.