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.)
GD Searle LLC
Original Assignee
GD Searle LLC
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 US389183Aexternal-prioritypatent/US3261829A/en
Application filed by GD Searle LLCfiledCriticalGD Searle LLC
Priority to FR28215ApriorityCriticalpatent/FR1456698A/fr
Priority to FR38253Aprioritypatent/FR7120M/fr
Application grantedgrantedCritical
Publication of FR1456698ApublicationCriticalpatent/FR1456698A/fr
C07J43/00—Normal steroids having a nitrogen-containing hetero ring spiro-condensed or not condensed with the cyclopenta(a)hydrophenanthrene skeleton
C07J43/006—Normal steroids having a nitrogen-containing hetero ring spiro-condensed or not condensed with the cyclopenta(a)hydrophenanthrene skeleton spiro-condensed
FR28215A1964-08-121965-08-12Procédé de préparation de spiro
ExpiredFR1456698A
(fr)