3-methyl-4-oxo-5-(2-pyrrolidin-1-yl-ethyl)-1,4,5,6,7,8-hexahydro-pyrrolo[3,2-c]azepine-2-carbaldehyde   、                                                                                      
5-氯氧化吲哚                                                                                                                                                              在
                                                                                                                                                                                 
2-(5-chloro-2-oxo-1,2-dihydro-indol-3-ylidenemethyl)-3-methyl-5-(2-pyrrolidin-1-yl-ethyl)-5,6,7,8-tetrahydro-1H-pyrrolo[3,2-c]azepin-4-one                                                                                                                                  作用下,
                                                                                                                                                                                                                            以to obtain 2-(5-chloro-2-oxo-1,2-dihydro-indol-3-ylidenemethyl)-3-methyl-5-(2-pyrrolidin-1-yl-ethyl)-5,6,7,8-tetrahydro-1H-pyrrolo[3,2-c]azepin-4-one 47 (61 mg, yield 77.7%) as a yellow solid的产率得到2-(5-chloro-2-oxo-1,2-dihydro-indol-3-ylidenemethyl)-3-methyl-5-(2-pyrrolidin-1-yl-ethyl)-5,6,7,8-tetrahydro-1H-pyrrolo[3,2-c]azepin-4-one