苯酚   、                                                                                      
11-溴-1-十一醇   、                                                                                      
1-十一烷醇,11-苯氧基-   、                                                                                      
11-苯氧基十一烷酸   、                                                                                      (R)-benzyl 3-amino-4-(dimethylamino)butanoate dihydrochloride                                                                                                                                                                                                                                                                                                          以to produce (R)-4-dimethylamino-3-[11-phenoxy-undecanoylamino]-butyric acid benzyl ester, which的产率得到(R)-4-dimethylamino-3-[11-phenoxy-undecanoylamino]-butyric acid benzyl ester