[2-ethyl-1-(2-phenyl-phenylmethyl)-3-ureido-1H-indol-4-yl]oxy acetic acid tert-butyl ester                                                                                                                                                              在
                                                                                                                                                                                 
盐酸                                                                                                                                  作用下,
                                                                                                                以
                                                                                         tetrahydrofuran methanol                                                                                  为溶剂,
                                                                                                                                                    反应 17.0h,
                                                                                                                以to provide 0.098 g of [[2-ethyl-1-(2-phenyl-phenylmethyl)-3-ureido-1H-indol-4-yl]oxy]acetic acid的产率得到[[2-ethyl-1-(2-phenyl-phenylmethyl)-3-ureido-1H-indol-4-yl]oxy]acetic acid