Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wyeth Holdings LLC
Original Assignee
American Cyanamid Co
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Filing date
Publication date
Application filed by American Cyanamid CofiledCriticalAmerican Cyanamid Co
Priority to ES0226033ApriorityCriticalpatent/ES226033A2/es
Publication of ES226033A2publicationCriticalpatent/ES226033A2/es
Mejoras introducidas en un procedimiento de preparacion de acido 7-(d-5-amino-5 - carboxivaleramido)-3-(carbamoiloxime-til)-7-metoxi-3-cefem-4-carboxilico.