{2-[3-Cyclopentylmethyl-3-(2,4,6-trifluoro-phenyl)-ureido]-thiazol-5-ylsulfanyl}-acetic acid ethyl ester   、                                                                                      {2-[3-Cyclopentyl methyl-3-(4-methanesulfonyl-phenyl)-ureido]-thiazol-4-yl}-acetic acid   、                                                                                      
N-(Cyclopentylmethyl)-2,4,6-trifluoroaniline   、                                                                                      
2-(2-氨基噻唑-5-硫基)乙酸乙酯                                                                                                                                                                                                                                                                                                          生成                                                 {2-[3-Cyclopentyl methyl-3-(2,4,6-trifluoro-phenyl)-ureido]-thiazol-5-ylsulfanyl}-acetic acid