1,2-dihydro-1-(2-methoxybenzyl)-4-(4-methoxyphenyl)-2-oxo-7-nitrobenzofuro[3,2-b]pyridine-3-carboxylic acid                                                                                                                                                              在
                                                                                                                                         
镍                                                                                                                                                                          作用下,
                                                                                                                以
                                                                                         
甲醇                                                                                  为溶剂,
                                                                                                                                                                                        以7-amino-1,2-dihydro-1-(2-methoxybenzyl)-4-(4-methoxyphenyl)-2-oxobenzofuro[3,2-b]pyridine-3-carboxylic acid, m.p. 268°, is obtained的产率得到7-amino-1,2-dihydro-1-(2-methoxybenzyl)-4-(4-methoxyphenyl)-2-oxobenzofuro[3,2-b]pyridine-3-carboxylic acid