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Priority claimed from GB39136/67Aexternal-prioritypatent/GB1167387A/en
Priority claimed from GB39169/67Aexternal-prioritypatent/GB1244604A/en
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Publication of BE719894ApublicationCriticalpatent/BE719894A/nl
C07J53/00—Steroids in which the cyclopenta(a)hydrophenanthrene skeleton has been modified by condensation with a carbocyclic rings or by formation of an additional ring by means of a direct link between two ring carbon atoms, including carboxyclic rings fused to the cyclopenta(a)hydrophenanthrene skeleton are included in this class