| abstract |
The present invention relates to novel retinoid antagonists of the formula (I) wherein the dotted bond is optional; and, when the dotted bond is present, R1 is lower alkyl and R2 is hydrogen; and, when the dotted bond is absent, R?1 and R2¿ taken together are methylene to form a cis-substituted cyclopropyl ring; R3 is hydroxy or lower alkoxy; R4 is alkyl or alkoxy; and R?5 and R6¿ are, independently, a C¿4-12? alkyl group or a mono- or polycyclic C5-12-hydrocarbon group which are linked to the phenyl ring through a quaternary carbon atom, and pharmaceutically acceptable salts of carboxylic acids of formula (I); the use of retinoid antagonists, their pharmaceutically acceptable salts or pharmaceutically acceptable hydrolyzable esters, for the manufacture of a medicament for the treatment of T-helper cell type 2 (Th2)-mediated immune diseases, for the manufacture of a medicament for the treatment of osteoporosis and for use in the treatment of preneoplastic and neoplastic diseases. |