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Application filed by Maszyn Wiertniczych I GorniczyfiledCriticalMaszyn Wiertniczych I Gorniczy
Priority to PL19316676ApriorityCriticalpatent/PL107451B1/pl
Publication of PL193166A1publicationCriticalpatent/PL193166A1/pl
Publication of PL107451B1publicationCriticalpatent/PL107451B1/pl
Sett att framstella 7epsilon-(alkoxikarbonyl)-6epsilon-alkyl/halo-17-hydroxi-3-oxo-17alfa-pregn-4-en-21-karboxylsyra-gamma-laktoner och motsvarande 21-karboxylsyror samt estrar och salter derav