反应详情

In analogy to the procedures described in example 26B] and 124C], methyl-[2-methyl-6-(4-trifluoromethyl-phenyl)-pyridin-3-yl]-amine (prepared from [2-methyl-6-(4-trifluoromethyl-phenyl)-pyridin-3-yl]-carbamic acid tert-butyl ester (example 125B] by N-methylation followed by Boc-cleavage in analogy to the procedures described in examples 5E] and 5F]) was reacted with 2-(4-carboxymethyl-phenoxy)-2-methyl-propionic acid tert-butyl ester (example 124A]) to give 2-methyl-2-[4-({methyl-[2-methyl-6-(4-trifluoromethyl-phenyl)-pyridin-3-yl]-carbamoyl}-methyl)-phenoxy]-propionic acid tert-butyl ester, which was subsequently cleaved with trifluoroacetic acid to yield the title compound as colorless solid.