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.)
DR GEORG HENNING CHEM PHARM WERK G M B H
Original Assignee
DR GEORG HENNING CHEM PHARM WERK G M B H
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 DE19691950076external-prioritypatent/DE1950076C2/de
Application filed by DR GEORG HENNING CHEM PHARM WERK G M B HfiledCriticalDR GEORG HENNING CHEM PHARM WERK G M B H
Publication of ES382813A1publicationCriticalpatent/ES382813A1/es
C07D487/00—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups C07D451/00 - C07D477/00
C07D487/02—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups C07D451/00 - C07D477/00 in which the condensed system contains two hetero rings
C07D487/04—Ortho-condensed systems
Landscapes
Chemical & Material Sciences
(AREA)
Organic Chemistry
(AREA)
Nitrogen Condensed Heterocyclic Rings
(AREA)
Pharmaceuticals Containing Other Organic And Inorganic Compounds
(AREA)
ES382813A1969-10-031970-08-17Procedimiento para la elaboracion de 4-hidroxi-pirazolo (3,4-d) pirimidina.
ExpiredES382813A1
(es)
Un procedimiento para la fabricacion de un articulo consistente esencialmente en resina de policarbonato con gran resistencia a la degradacion por la luz ultravioleta.