Steroidal spirooxetanes. I. Synthesis and antiandrogenic properties of some 17-spirooxetanoandrostanes
作者:I. M. Gella、L. Yu. Sergienko、A. N. Cherevko
DOI:10.1007/bf02219031
日期:1994.8
activity of 17-spirooxiranes showed that some compounds can inhibit 3-ketosteroid-AS-isomerase irreversibly [9]. The 17-spirooxetanes, which occupy an intermediate position, have been studied insufficiently, although some examples of this series are already known [6, 10, 11]. The synthesis of steroidal oxetanes includes two approaches: the cyclization of 17t~-(2-hydroxyethyl)-17/~hydroxysteroids using