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Priority claimed from CH1811967Aexternal-prioritypatent/CH513837A/en
Priority claimed from CH1751368Aexternal-prioritypatent/CH549002A/en
Priority claimed from DK627868AAexternal-prioritypatent/DK128239B/en
Application filed by Ciba Geigy AgfiledCriticalCiba Geigy Ag
Publication of DK132281BpublicationCriticalpatent/DK132281B/en
Application grantedgrantedCritical
Publication of DK132281CpublicationCriticalpatent/DK132281C/en
DK229271A1967-12-221971-05-12
PROCEDURE FOR THE PREPARATION OF 18-METHYLENE STEROIDS OF THE PREGNANE OR ANDROSTAN RANGE OR 19-NOR ANALOG THEREOF
DK132281C
(en)
Analogous process for the preparation of therapeutically effective 21- (β-ethoxy-ethoxy) -acetates or 21- (β-ethoxy-β-ethoxy-ethoxy) -acetates of steroids of the pregnane series.