反应详情

In analogy to the procedure described in example 10 c], [rac]-2-(4-hydroxy-2-methyl-benzyl)-butyric acid ethyl ester (example 125 c]) was reacted with 2-[4-methyl-2-(4-trifluoromethyl-phenyl)-thiazol-5-yl]-propan-2-ol [PCT Int. Appl. (2002), WO 02/062774 A1] in the presence of tributylphosphine and N,N,N′,N′-tetramethyl azodicarboxamide to yield [rac]-2-(2-methyl-4-{1-methyl-1-[4-methyl-2-(4-trifluoromethyl-phenyl)-thiazol-5-yl]-ethoxy}-benzyl)-butyric acid ethyl ester as colorless oil.