盐酸   、                                                                                      
乙酸乙酯   、                                                                                      
tert-butyl 4-(4-cyano-3-methoxyphenyl)piperidine-1-carboxylate                                                                                                                                                              在
                                                                                                                                                                                 
乙醚                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
二氯甲烷                                                                                  为溶剂,
                                                                                                                                                    反应 2.0h,
                                                                                                                以to give the title compound as the hydrochloride salt (0.100 g, 83%; 50% pure due to impure starting material), 1H NMR (400.132 MHz, DMSO-d6) δ 1.82-2.00 (4H, m), 2.90-3.04 (3H, m), 3.20-3.31 (2H, m), 3.93 (3H, s), 6.96 (1H, d), 7.08 (1H, s), 7.70 (1H, d), 8.94 (1H, s), m/z (ESI+)的产率得到2-Methoxy-4-(piperidin-4-yl)benzonitrile