4-氨基四氢吡喃   、                                                                                      
lithium (S)-5-(2-methyl-2-(2-methyl-8-(4-(morpholine-4-carbonyl)phenyl)-5H-pyrano[2,3-b:6,5-b']dipyridin-5-yl)propanamido)-1,3,4-thiadiazole-2-carboxylate   、                                                                                      
三氟乙酸                                                                                                                                                              在
                                                                                                                                                                                 (benzotriazo-1-yloxy)tris(dimethylamino)phosphonium hexafluorophosphate   、                                                                                                  
N,N-二异丙基乙胺                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
N,N-二甲基甲酰胺                                                                                  为溶剂,
                                                                                                                                                    反应 2.0h,
                                                                                                                生成                                                 5-((2-methyl-2-((5S)-2-methyl-8-(4-(4-morpholinylcarbonyl)phenyl)-5H-pyrano[2,3-b:6,5-b']dipyridin-5-yl)propanoyl)amino)-N-(tetrahydro-2H-pyran-4-yl)-1,3,4-thiadiazole-2-carboxamide trifluoroacetate