(5-Formyl-2-methoxyphenyl) thiophene-2-carboxylate 、
boc-4-aminohippuric acid 在
sodium acetate 、
乙酸酐 作用下,
反应 1.0h,
生成 [5-[(E)-[2-(4-acetamidophenyl)-5-oxo-1,3-oxazol-4-ylidene]methyl]-2-methoxyphenyl] thiophene-2-carboxylate 、 [2-methoxy-5-[(E)-[2-[4-[(2-methylpropan-2-yl)oxycarbonylamino]phenyl]-5-oxo-1,3-oxazol-4-ylidene]methyl]phenyl] thiophene-2-carboxylate