2-(2,2-dimethyl-5-oxo-[1,3]-dioxolan-4-ylidene)-N-(2-fluoro-benzyl)-N-methoxy acetamide 在
3-[(4-Fluoro-benzyl)-methoxy-carbamoyl]-2-hydroxy-acrylic acid methyl ester 作用下,
以
甲醇 为溶剂,
以gave the title ester as a white syrup (59% yield)的产率得到3-[(2-Fluorobenzyl)-methoxy-carbamoyl]-2-hydroxy-acrylic acid methyl ester