4-(trifluoromethyl)bicyclo[2.2.1]heptane-1-carboxylic acid   、                                                                                      (2S,5S)-2,3,4,5-tetrahydro-2,5-methanopyrido[3,4-f][1,4]oxazepine-9-carbonitrile hydrochloride                                                                                                                                                              在
                                                                                                                                                                                 
N,N-二异丙基乙胺   、                                                                                                  
Methanaminium,N-[(dimethylamino)(3H-1,2,3-triazolo[4,5-b]pyridin-3-yloxy)methylene]-N-methyl-, hexafluorophosphate(1-)                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
N,N-二甲基甲酰胺                                                                                  为溶剂,
                                                                                                                                                                                        生成                                                 (2S,5S)-4-(4-(trifluoromethyl)bicyclo[2.2.1]heptane-1-carbonyl)-2,3,4,5-tetrahydro-2,5-methanopyrido[3,4-f][1,4]oxazepine-9-carbonitrile