(2ξ)-2-[(7R)-11-chloro-2-oxo-7-(trifluoromethyl)-2,6,7,8-tetrahydro-3H-[3]benzoxocino[2,1-c]pyridin-3-yl]-2,3,5-trideoxy-4-O-methyl-L-glyceropentonic acid 、
3-methyl[1,2,4]triazolo[4,3-a]pyridin-7-amine hydrochloride 在
N,N-二异丙基乙胺 、 N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
以11 mg的产率得到(4S)-2-[(7R)-11-chloro-2-oxo-7-(trifluoromethyl)-2,6,7,8-tetrahydro-3H-[3]benzoxocino[2,1-c]pyridin-3-yl]-4-methoxy-N-(3-methyl[1,2,4]triazolo[4,3-a]pyridin-7-yl)pentanamide