methyl 6-(3-cyclopentylacryloyl)nicotinate   、                                                                                      
2-氯-4-肼基苯甲腈                                                                                                                                                              在
                                                                                                                                                                                 
methyl 6-(1-(3-chloro-4-cyanophenyl)-5-cyclopentyl-4,5-dihydro-1H-pyrazol-3-yl)nicotinate                                                                                                                                  作用下,
                                                                                                                                                                                                                            以24 mg of the title compound was isolated (26%) as a solid的产率得到methyl 6-(1-(3-chloro-4-cyanophenyl)-5-cyclopentyl-4,5-dihydro-1H-pyrazol-3-yl)nicotinate