反应详情

3-(2-Methyl-oxazol-4-yl)-benzoic acid methyl ester (1.02 g) was treated with lithium tert.-butyl acetate according to the general procedure K (method b) to give crude 3-oxo-3-(3-(2-methyl-oxazol-4-yl)-phenyl]-propionic acid tert -butyl ester (1.50 g) as a pale-yellow oil.