4-(furan-3-ylmethoxy)-1H-indole-2-carboxylic acid piperidin-4-ylamide   、                                                                                      
2,2-dimethyl-propionic acid (3R,4R)-1-((R)-2-hydroxy-propyl)-3-methyl-piperidin-4-yl ester   、                                                                                      
{1-[(S)-2-(4-hydroxy-piperidin-1-yl)-propyl]-piperidin-4-yl}-carbamic acid tert-butyl ester                                                                                                                                                                                                                                                                                                          生成                                                 4-(furan-3-ylmethoxy)-1H-indole-2-carboxylic acid {1-[(S)-2-((3R,4R)-4-hydroxy-3-methyl-piperidin-1-yl)-propyl]-piperidin-4-yl}-amide