Potassium Iodide → (2S)-2-ethoxy-3-{2-methyl-4-[2-(4-trifluoromethyl-phenyl)-thiazol-4-ylmethoxy]-phenyl}-propionic acid methyl ester

Beteiligte Stoffe

Reaktionsschritte

In analogy to the procedure described in example 14 b], (2S)-2-ethoxy-3-(4-hydroxy-2-methyl-phenyl)-propionic acid methyl ester (example 17 d]) was reacted with 4-chloromethyl-2-(4-trifluoromethyl-phenyl)-thiazole (prepared from 4-trifluoromethyl-thiobenzamide and 1,3-dichloroacetone in analogy to the procedure described in example 4 a]) in the presence of cesium carbonate and potassium iodide to yield (2S)-2-ethoxy-3-{2-methyl-4-[2-(4-trifluoromethyl-phenyl)-thiazol-4-ylmethoxy]-phenyl}-propionic acid methyl ester as colorless liquid.

Herkunft & Nachweise