Methyl 3-Hydroxyphenylacetate → 2-Methyl-2-(3-{[2-methyl-6-(4-trifluoromethyl-phenyl)-pyridin-3-ylcarbamoyl]-methyl}-phenoxy)-propionic acid tert-butyl ester

Beteiligte Stoffe

Reaktionsschritte

In analogy to the procedures described in example 26B] and 124C], 2-methyl-6-(4-trifluoromethyl-phenyl)-pyridin-3-ylamine (example 125C]) was reacted with 2-(3-carboxymethyl-phenoxy)-2-methyl-propionic acid tert-butyl ester (prepared from (3-hydroxy-phenyl)-acetic acid methyl ester and tert-butyl alpha-bromoisobutyrate, in analogy to the procedure described in example 52A], followed by saponification in analogy the procedure described in example 124A]) to give 2-methyl-2-(3-{[2-methyl-6-(4-trifluoromethyl-phenyl)-pyridin-3-ylcarbamoyl]-methyl}-phenoxy)-propionic acid tert-butyl ester, which was subsequently cleaved with trifluoroacetic acid to yield the title compound as light yellow amorphous solid.

Herkunft & Nachweise