16-tert-Butoxycarbonylamino-hexadecanoic acid (2R,3S,4R,5R,6S)-5-acetylamino-6-acetylsulfanyl-4-{(R)-1-[(S)-1-((R)-1-carbamoyl-3-methoxycarbonyl-propylcarbamoyl)-ethylcarbamoyl]-ethoxy}-3-hydroxy-tetrahydro-pyran-2-ylmethyl ester   、                                                                                      
三氟乙酸                                                                                                                                                                                                                                                                                                          以100%的产率得到16-Amino-hexadecanoic acid (2R,3S,4R,5R,6S)-5-acetylamino-6-acetylsulfanyl-4-{(R)-1-[(S)-1-((R)-1-carbamoyl-3-methoxycarbonyl-propylcarbamoyl)-ethylcarbamoyl]-ethoxy}-3-hydroxy-tetrahydro-pyran-2-ylmethyl ester; compound with trifluoro-acetic acid