Ethyl 4-(6-methoxy-biphenyl-3-yl)aminobutyrate   、                                                                                      
5-氯-2-甲氧基苯甲酰氯                                                                                                                                                                                                                                                                                                          以yields 7.1 g (70.1% of theory) of 4-[5-chloro-2-methoxy-N-(6-methoxybiphenyl-3-yl)benzamido]-butyric acid, MP 155° to 156°的产率得到4-[5-chloro-2-methoxy-N-(6-methoxybiphenyl-3-yl)benzamido]butyric acid