[EN] NEW MONO-AND BISMETHYLENE-STEROID DERIVATIVES AND PROCESS FOR THEIR SYNTHESIS<br/>[FR] NOUVEAUX DERIVES DE MONO-ET BISMETHYLENE-STEROIDE ET PROCEDE DE SYNTHESE DE CEUX-CI
申请人:RICHTER GEDEON VEGYESZET
公开号:WO2004101594A1
公开(公告)日:2004-11-25
The invention relates to new mono- and bismethylene-steroid derivatives of general formula (I) - wherein Z represents two hydrogen atoms or an oxo group; X and Y independently of each other represent either two hydrogen atoms of a CH2= group, with the restriction that at least one of them is CH2= group and if the meaning of Z is oxo group Y represents two hydrogen atoms, R represents a C1-C4 alkyl group, as well as the pharmaceutical compositions containing the above compounds as active ingredients, and the processes for the synthesis of active ingredients and pharmaceutical compositions. The invention also relates to the methods of treatments with these compounds, which means administering to a mammal to be treated with progestogen - including human - effective amount/amounts of the active ingredients of the present invention as such or as medicament. The mono- and bismethylene-steroid derivatives of the general formula (I) have progestogen effect. They can be used as active ingredients of contraceptive medicaments as such or in combination with an estrogen component. Furthermore, they can be used in the treatment of endometriosis and in the substitution therapy of estrogen as gestagen agent beside the estrogen component. The mono- and bismethylene-steroid derivatives of the general formula (I) of the present invention can be synthesized by reacting a compound of the general formula (II), - wherein the meaning of Z, X and Y is as described for the compounds of formula (I) - with an acid anhydride of the general formula (R-CO)2O or with an acid chloride of the general formula R-CO-Cl - wherein R represents a C1-C4 alkyl group - in the presence of a strong acid.
Steroids 48. Synthesis of 16α-ethyl-21-hydroxy-19-norpregn-4-ene-3,20-dione from 17-substituted 3-methoxyestradiols
作者:Magdalena Lőkős、Tamás Bakos、Irén Vincze
DOI:10.1016/0039-128x(93)90067-w
日期:1993.4
Abstract A new synthesis of 16α-ethyl-21-hydroxy-19-norpregn-4-ene-3,20-dione is described, starting from 17-cyano- and 17α-ethynyl-3-methoxyestra-1,3,5(10)-trien-17-ols. (Steroids 58: 185–189, 1993)