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.)
Astellas Pharma Inc
Original Assignee
Yamanouchi Pharmaceutical Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from JP12843172Aexternal-prioritypatent/JPS551273B2/ja
Priority claimed from JP2684073Aexternal-prioritypatent/JPS49110686A/ja
Priority claimed from JP5644173Aexternal-prioritypatent/JPS504090A/ja
Application filed by Yamanouchi Pharmaceutical Co LtdfiledCriticalYamanouchi Pharmaceutical Co Ltd
Publication of ES421676A1publicationCriticalpatent/ES421676A1/es
Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems
(AREA)
Cephalosporin Compounds
(AREA)
ES421676A1972-12-211973-12-20Un procedimiento para la preparacion de derivados acil-he- terociclicos sustituidos de cefalosporina.
ExpiredES421676A1
(es)