4-[6,7-bis(12-phenyldodecanoyloxy)-4-thiaheptanoylaminomethyl]benzoyl-glutamic acid di-t-butyl ester   、                                                                                                                                                                                                                                                                                    以
                                                                                         
三氟乙酸                                                                                  为溶剂,
                                                                                                                                                    反应 2.0h,
                                                                                                                以to yield the title compound (200 mg, yield 88%) as a syrup的产率得到4-[6,7-Bis(12-phenyldodecanoyloxy)-4-thiaheptanoylaminomethyl]benzoyl-glutamic acid