反应详情

In analogy to the procedure described in example 17 a], [rac]-3-(4-hydroxy-naphthalen-1-yl)-2-methoxy-propionic acid methyl ester was reacted with 2-[2-(4-methoxy-phenyl)-5-methyl-oxazol-4-yl]-ethanol [J. Med. Chem. (1998), 41(25), 5037-5054] in the presence of triphenylphosphine and DEAD (diethyl azodicarboxylate) to yield [rac]-2-methoxy-3-(4-{2-[2-(4-methoxy-phenyl)-5-methyl-oxazol-4-yl]-ethoxy}-naphthalen-1-yl)-propionic acid methyl ester, which was further saponified in analogy to the procedure described in example 91 e] to yield [rac]-2-methoxy-3-(4-{2-[2-(4-methoxy-phenyl-5-methyl-oxazol-4-yl]-ethoxy}-naphthalen-1-yl)-propionic acid as colorless solid.