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.)
Takeda Pharmaceutical Co Ltd
Original Assignee
Takeda Chemical Industries 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
Application filed by Takeda Chemical Industries LtdfiledCriticalTakeda Chemical Industries Ltd
Priority to JP8653675ApriorityCriticalpatent/JPS5831354B2/en
Publication of JPS5210291ApublicationCriticalpatent/JPS5210291A/en
Publication of JPS5831354B2publicationCriticalpatent/JPS5831354B2/en
PURPOSE: Thienopyridinecarboxylic acid derivatives of formula I (where R1 and R2 are H, lower alkyls, halogens or form a lower alkylene to which they couple together; R3 is H or a lower alkyl; R4 is a lower alkyl).