3-(2,5-dimethyl-thiazol-4-yl)-benzoic acid methyl ester 、 Lithium Tert-butyl Acetate 以to give 3-[3-(2,5-dimethyl-thiazol-4-yl)-phenyl]-3-oxo-propionic acid tert-butyl ester (1.12 g) as a pale-yellow oil的产率得到3-[3-(2,5-dimethyl-thiazol-4-yl)-phenyl]-3-oxo-propionic acid tert-butyl ester