5-carboxymethoxy-isophthalic acid dimethyl ester   、                                                                                      
3-(4-amino-phenyl)-3-oxo-propionic acid-[2-(2,4-di-tert-pentyl-phenoxy)-anilide]                                                                                                                                                              在
                                                                                                                                                                                 
氯化亚砜                                                                                                                                  作用下,
                                                                                                                                                                                                                            生成                                                 3-{4-[2-(3,5-bis-methoxycarbonyl-phenoxy)-acetylamino]-phenyl}-3-oxo-propionic acid-[2-(2,4-di-
tert-pentyl-phenoxy)-anilide]