Substituted diaryl or diheteroaryl methanes, ethers and amines having retinoid agonist, antagonist or inverse agonist type biological activity

摘要

Compounds of the formulaPPY.sub.3 (R.sub.4)--X- -Y.sub. 1 (R.sub. 1 R.sub.2)--Z--Y.sub.2 (R.sub.2)--A--BPP where the symbols have the meaning defined in the specification, have retinoid, retinoid antagonist or retinoid inverse agonist type biological activity.