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.)
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Takeda Pharmaceutical Co Ltd
Original Assignee
Takeda Chemical Industries Ltd
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Filing date
Publication date
Application filed by Takeda Chemical Industries LtdfiledCriticalTakeda Chemical Industries Ltd
Priority to JP128776ApriorityCriticalpatent/JPS5283893A/en
Publication of JPS5283893ApublicationCriticalpatent/JPS5283893A/en
Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems
(AREA)
Pharmaceuticals Containing Other Organic And Inorganic Compounds
(AREA)
Abstract
PURPOSE: Heterocyclic compounds of formula I (R1 is H, hydrocarbyl; R2 is H, lower alkyl; Py is pyridyl; Z is O, S, NH; Y is ethylene or trimethylene which may be substituted by lower alkyl; ring A may be substituted by halogen, nitro, alkyl, etc.); for example, 2-bromo-11,12-dihydro-6-methyl-13a-(2-pyridyl)9H,13aH-oxasolo [3,2-d]-S-triazolo [4,3-a] [1,4] benzodiazepin.