| abstract |
A phenol derivative of the formulawherein NU is a defined bis-phenolic nucleus including a hydroxyphenyl-hydroxynaphthyl; hydroxyphenyl-hydroxyin- danyl, hydroxyphenyl-hydroxybenzothienyl or di-hydroxyphenyl-ethylene or vinylene nucleus; wherein A is alkylene, alkenylene or cycloalkylene which is interrupted by a heterocyclene linkage, wherein R<sup>1</sup> is hydrogen, or alkyl, alkenyl, cycloalkyl, halogenoalkyl, aryl or arylalkyl, or R is joined to R<sup>2</sup>, and wherein X is -CONR<sup>2-</sup>, -CSNR<sup>2-</sup>, -NR<sup>12</sup>CO-, -NR<sup>12</sup>CS-, -NR<sup>12</sup>CONR<sup>2</sup>-,-SO<sub>2</sub>NR<sup>2</sup>- or -CO-, or, when R<sup>1</sup> is not hydrogen, is -NR<sup>12</sup>COO-, -S-, -SO- or -S0<sub>2</sub>-, wherein R<sup>2</sup> is hydrogen or alkyl, or R<sup>1</sup> and R<sup>2</sup> together form alkylene; wherein R<sup>12</sup> is hydrogen or alkyl, and wherein R<sup>22</sup> is hydrogen, cyano or nitro; or a salt thereof when appropriate. The compounds possess antioestrogenic activity and may be used for the treatment of hormone-dependent breast tumours or of anovulatory infertility. |