Document Type and Number:
Japanese Patent JPS641480
Kind Code:
B2
Abstract:
The compounds correspond to the formula in which R is hydrogen, alkyl, tetrahydropyranyl, trityl or trimethylsilyl and R1 is hydrogen, acyl or tetrahydropyranyl. They are prepared from 17 alpha -methyl-3-methoxy-19-norpregna-1,3,5(10)-trien-20-one by a synthesis in eight, nine or ten stages depending on the meaning of R and R1. Compounds I may be used for the synthesis of steroids labelled with tritium in positions 6 and 7.
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Inventors:
RORAN BARUDONESHI
ARAN JUKE
DANIERU FUIRIBEERU
ARAN JUKE
DANIERU FUIRIBEERU
Application Number:
JP1824486A
Publication Date:
January 11, 1989
Filing Date:
January 31, 1986
Export Citation:
Assignee:
ROUSSEL UCLAF
International Classes:
A61K51/00; C07J9/00; C07J17/00; G01N33/74
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