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.)
F Hoffmann La Roche AG
Original Assignee
F Hoffmann La Roche AG
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 F Hoffmann La Roche AGfiledCriticalF Hoffmann La Roche AG
Priority to FR826582ApriorityCriticalpatent/FR1292945A/fr
Priority to FR835582Aprioritypatent/FR174M/fr
Application grantedgrantedCritical
Publication of FR1292945ApublicationCriticalpatent/FR1292945A/fr
Procédé pour la préparation de 7-brome-4-azaphénothiazine et de derivés halogènes respectivement en 7 et en 2 de 4-azaphénothiazines basiquement substituées