3-((R)-1-{(S)-1-[5-(4-iodo-phenyl)-1H-imidazol-2-yl]-2-methyl-propyl}-2,5-dioxo-imidazolidin-4-yl)-propionic acid   、                                                                                      (R)-5-cyclopropylmethyl-3-{(1S,2S)-1-[5-(2-fluoro-4-iodophenyl)-4-methyl-1H-imidazol-2-yl]-2-phenylpropyl}imidazolidine-2,4-dione   、                                                                                      
(R)-tert-butoxycarbonylamino-(4-dimethylcarbamoylmethoxy-phenyl)-acetic acid   、                                                                                      
N-氯代丁二酰亚胺                                                                                                                                                                                                                                                                                                          生成                                                 
2-[4-((R)-1-{(1S,2S)-1-[5-(2-fluoro-4-iodophenyl)-4-methyl-1H-imidazol-2-yl]-2-phenylpropyl}-2,5-dioxoimidazolidin-4-yl)phenoxy]-N,N-dimethylacetamide