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 filedfiledCritical
Publication of BE674041ApublicationCriticalpatent/BE674041A/xx
C07D471/00—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00
C07D471/02—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00 in which the condensed system contains two hetero rings
C07D471/04—Ortho-condensed systems
Landscapes
Chemical & Material Sciences
(AREA)
Organic Chemistry
(AREA)
Pharmaceuticals Containing Other Organic And Inorganic Compounds
(AREA)
Nitrogen Condensed Heterocyclic Rings
(AREA)
Other Surface Treatments For Metallic Materials
(AREA)