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.)
Novartis AG
BASF Schweiz AG
Original Assignee
Ciba Geigy AG
Ciba AG
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Filing date
Publication date
Application filed by Ciba Geigy AG, Ciba AGfiledCriticalCiba Geigy AG
Priority to FR799270ApriorityCriticalpatent/FR1272488A/fr
Priority to FR837108Aprioritypatent/FR408M/fr
Priority to FR837107Aprioritypatent/FR407M/fr
Application grantedgrantedCritical
Publication of FR1272488ApublicationCriticalpatent/FR1272488A/fr
C07J5/00—Normal steroids containing carbon, hydrogen, halogen or oxygen, substituted in position 17 beta by a chain of two carbon atoms, e.g. pregnane and substituted in position 21 by only one singly bound oxygen atom, i.e. only one oxygen bound to position 21 by a single bond
C—CHEMISTRY; METALLURGY
C07—ORGANIC CHEMISTRY
C07J—STEROIDS
C07J75/00—Processes for the preparation of steroids in general
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Chemical & Material Sciences
(AREA)
Organic Chemistry
(AREA)
Health & Medical Sciences
(AREA)
General Health & Medical Sciences
(AREA)
FR799270A1958-07-071959-07-03Procédé de préparation de 6alpha-halogène-16alpha-méthyl-prégnènes et de leurs esters
ExpiredFR1272488A
(fr)