5-Hydroxy-1-methyl-1H-1,2,4-triazole-3-carboxylic acid 、 (7R,9R)-N-(2-chloro-4-(trifluoromethyl)phenyl)-2-(3,6-dihydro-2H-pyran-4-yl)-7-methyl-5-oxo-6-(piperazin-1-yl)-5,7,8,9-tetrahydropyrrolo[1,2-c][1,2,4]triazolo[1,5-a]pyrimidine-9-carboxamide 在
1-氯-N,N,2-三甲基丙烯胺 、
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
二氯甲烷 为溶剂,
以73 %的产率得到(7R,9R)-N-(2-chloro-4-(trifluoromethyl)phenyl)-2-(3,6-dihydro-2H-pyran-4-yl)-7-methyl-6-(4-(1-methyl-5-oxo-4,5-dihydro-1H-1,2,4-triazole-3-carbonyl)piperazin-1-yl)-5-oxo-5,7,8,9-tetrahydropyrrolo[1,2-c][1,2,4]triazolo[1,5-a]pyrimidine-9-carboxamide