Japanese Patent JPH0466879

B2

Novel 19-nor steroids and 19-nor-D-homo-steroids of the formula I' wherein R1 is an organic radical of 1 to 18 carbon atoms containing at least one atom selected from the group consisting of nitrogen, phosphorous and silicon with the atom immediately adjacent to the 11-carbon atom being carbon, R2 is a hydrocarbon of 1 to 8 carbon atoms, X is selected from the group consisting of a pentagonal ring and a hexagonal ring optionally substituted and optionally containing a double bond, B and C together form a double bond or an epoxy group, the C=A group at position 3 is selected from the group consisting of C=O, ketal, which may be open or closed +TR CNOAlK3 and CCH2, AlK1, AlK2 and AlK3 are selected from the group consisting of alkyl of 1 to 8 carbon atoms and aralkyl of 7 to 15 carbon atoms and their non-toxic, pharmaceutically acceptable acid addition salts having anti-glucocorticoid activity and a process for their preparation.

JPH05500947	INDUSTRIAL APPLICABILITY [Title of Invention] Use of anti-gestagen for drug production
WO/2015/040051	PROCESS FOR THE PREPARATION OF ESTETROL
JPS588094	PREPARATION OF ETHYNYLESTRADIOL

JAN JORUJU TOOCHI
JERUMAN KOSUTORUUSU
DANIERU FUIRIBEERU
ROJE DORAE

JP6648889A

October 26, 1992

March 20, 1989

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ROUSSEL UCLAF

C07J1/00; A61K31/565; A61K31/57; A61K31/58; A61P3/08; A61P5/38; A61P9/10; A61P9/12; A61P25/20; A61P37/04; A61P43/00; C07J7/00; C07J21/00; C07J41/00; C07J43/00; C07J51/00; C07J63/00; C07J71/00

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