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