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C07J21/00—Normal steroids containing carbon, hydrogen, halogen or oxygen having an oxygen-containing hetero ring spiro-condensed with the cyclopenta(a)hydrophenanthrene skeleton
C—CHEMISTRY; METALLURGY
C07—ORGANIC CHEMISTRY
C07J—STEROIDS
C07J1/00—Normal steroids containing carbon, hydrogen, halogen or oxygen, not substituted in position 17 beta by a carbon atom, e.g. estrane, androstane
C07J1/0003—Androstane derivatives
C07J1/0011—Androstane derivatives substituted in position 17 by a keto group
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BE161414A1974-10-311975-10-30Procede de preparation de 16 - (5' - spiro - 1',3' - dioxanyl) - steroides, et produits obtenus
BE835059A
(fr)