(15α,13E)-9-oxo-15-hydroxy-16-(4-fluorophenyl)-17,18,19,20-tetranor-5-thia-8-azaprost-13-enoic acid butyl ester   、                                                                                      
叔丁基二甲基氯硅烷                                                                                                                                                              在
                                                                                                                                                                                 
咪唑                                                                                                                                  作用下,
                                                                                                                以
                                                                                         DMF (N,N-dimethyl-formamide)                                                                                  为溶剂,
                                                                                                                                                    反应 1.0h,
                                                                                                                生成                                                 
(15α,13E)-9-oxo-15-{[t-butyl(dimethyl)silyl]oxy}-16-(4-fluorophenyl)-17,18,19,20-tetranol-5-thia-8-azaprost-13-enoic acid-n-butyl ester