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Novartis AG
BASF Schweiz AG
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Ciba Geigy AG
Ciba AG
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Application filed by Ciba Geigy AG, Ciba AGfiledCriticalCiba Geigy AG
Priority to FR797838ApriorityCriticalpatent/FR1271033A/fr
Priority to FR837105Aprioritypatent/FR405M/fr
Application grantedgrantedCritical
Publication of FR1271033ApublicationCriticalpatent/FR1271033A/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
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Organic Chemistry
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Health & Medical Sciences
(AREA)
General Health & Medical Sciences
(AREA)
FR797838A1958-07-111959-06-18Procédé de préparation de 21-hémi-diglycolates de 3, 20-dioxo-21-hydroxy-prégnanes non saturés dans l'anneau alpha
ExpiredFR1271033A
(fr)
Procédé de préparation de nouveaux 21-semi-tétrahydro-phtalates de composés 3, 20-dioxo-21-hydroxy-prégnaniques non saturés dans l'anneau alpha et de leurs sels