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.)
Mitsubishi Yuka Pharmaceutical Co Ltd
Toyo Jozo KK
Original Assignee
Mitsubishi Yuka Pharmaceutical Co Ltd
Toyo Jozo KK
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
Application filed by Mitsubishi Yuka Pharmaceutical Co Ltd, Toyo Jozo KKfiledCriticalMitsubishi Yuka Pharmaceutical Co Ltd
Priority to JP15657375ApriorityCriticalpatent/JPS5283391A/en
Publication of JPS5283391ApublicationCriticalpatent/JPS5283391A/en
PURPOSE: To obtain the title compounds by specific treatment of 3-methylenecepham compounds obtained by the ring expansion reaction of inexpensive penicillin ester-1-oxides.
COPYRIGHT: (C)1977,JPO&Japio
JP15657375A1975-12-271975-12-27Synthesis of 3-substituted methyl-cephem compounds
PendingJPS5283391A
(en)