1971 年 91 巻 7 号 p. 770-772
In order to examine the relationship between the structure and activity in progestational streoids, 17α-acetoxyprogesterone derivatives having 7α-alkylthio and/or 7α-arylthio group were synthesized. Among these compounds, 7α-methylthio derivative (IIb) showed the most potent progestational activity.