2-bromo-1-(2-methylbenzo[d]thiazol-5-yl)ethan-1-one                                                                                                                                                              在
                                                                                                                                                                                 1,6-anhydro-2,2',3,3',4',6'-hexa-O-acetyl-β-D-lactose   、                                                                                                  
乙酸铵                                                                                                                                  作用下,
                                                                                                                                                                                                                            生成                                                 (S*)-7-chloro-8-fluoro-12-(5-(2-methylbenzo[d]thiazol-5-yl)-1H-imidazol-2-yl)-13,14-dihydro-2H-spiro[benzo[5,6]azocino[4,3-g]indolizine-3,1'-cyclopropane]-1,10(4H,12H)-dione