(3R)-Morpholin-4-yl-piperidin-3-yl-methanone   、                                                                                      
N-叔丁氧羰基-4-哌啶酮   、                                                                                                                                                                                                                                                                                                                                                                                                以to give (3R)-3-(morpholine-4-carbonyl)-[1,4′]bipiperidinyl-1′-carboxylic acid tert-butyl ester (3.00 g, 69%)的产率得到(3R)-3-(morpholine-4-carbonyl)-[1,4']bipiperidinyl-1'-carboxylic acid tert-butyl ester