The addition of a basic ether side chain to a variety of both steroidal'and nonsteroidal estrogens3 confers a significant degree of antifertility activity to these compounds. It has been shown that this effect is caused primarily by an antiestrogenic activity produced by the addition of the basic side~ hain.~ j~ However, no study of the antifertility effect of the amino alcohols themselves corresponding to these side chains had yet been reported and a ...
