聚合甲醛   、                                                                                      
N-Benzyl-5-[2-(5,5-dimethyl-2,4-dioxoimidazolidin-1-yl)ethyl]-3-[2-aminoethyl]-1H-indole-2-carboxamide                                                                                                                                                              在
                                                                                                                                                                                 sodium cyanoborohydride   、                                                                                                  
溶剂黄146                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
甲醇                                                                                  为溶剂,
                                                                                                                                                                                        以20%的产率得到N-Benzyl-5-[2-(5,5-dimethyl-2,4-dioxoimidazolidin-1-yl)ethyl]-3-[2-(dimethylamino)ethyl]-1H-indole-2-carboxamide