(2R,3R)-8-(3,4-difluorophenyl)-7-heptyl-5-oxo-2-phenyl-2,3-dihydro-5H-[1,3]thiazolo[3,2-a]pyridine-3-carboxylic acid 在
Amberlite IR-120+ 作用下,
生成
(3R)-6-amino-7-(3-methyl-butyl)-5-oxo-8-(3-trifluoromethyl-phenyl)-2,3-dihydro-5H-thiazolo[3,2-a]pyridine-3-carboxylic acid