{4-[3-(4-Fluoro-phenylethynyl)-4-hydroxy-5-isopropyl-benzyl]-3,5-dimethyl-phenoxy}-acetic acid methyl ester

{4-[3-(2-Amino-phenylethynyl)-4-hydroxy-5-isopropyl-benzyl]-3,5-dimethyl-phenoxy}-acetic acid methyl ester

{4-[4-Hydroxy-3-isopropyl-5-(4-methoxy-phenylethynyl)-benzyl]-3,5-dimethyl-phenoxy}-acetic acid methyl ester

{4-[3-(4-Azido-phenylethynyl)-4-hydroxy-5-isopropyl-benzyl]-3,5-dimethyl-phenoxy}-acetic acid methyl ester

{4-[3-(4-Cyano-phenylethynyl)-4-hydroxy-5-isopropyl-benzyl]-3,5-dimethyl-phenoxy}-acetic acid methyl ester