structure--activity relationships of imidazolederivatives as inhibitors of thromboxane (TX) synthetase were investigated. Introduction of various substituents (e.g., one or two methyl groups, a halogen atom, a methylidene group, unsaturated bonds, or a phenylene group) into the alpha position or other positions in the carboxy-bearing side chain of 1-(7-carboxyheptyl)imidazole (15) was found to increase the
To find novel PPAR ligands, we prepared several 3-3 or 4-[2-(nonylpyridin-2-ylamino)ethoxy]phenyl}propanoicacidderivatives which were designed based on the structure of our previous PPARgamma ligand 1. In PPAR binding affinity assays, compound 4, which had an ethoxy group at the C-2 position of the propanoicacid of 1, showed selective binding affinity for PPARgamma. Compound 3, with an ethyl group