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Priority claimed from FR802439Aexternal-prioritypatent/FR1365253A/fr
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Priority to FR837083ApriorityCriticalpatent/FR414M/fr
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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
C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
C07F9/02—Phosphorus compounds
C07F9/06—Phosphorus compounds without P—C bonds
C07F9/08—Esters of oxyacids of phosphorus
C07F9/09—Esters of phosphoric acids
C07F9/098—Esters of polyphosphoric acids or anhydrides
C—CHEMISTRY; METALLURGY
C07—ORGANIC CHEMISTRY
C07J—STEROIDS
C07J75/00—Processes for the preparation of steroids in general