{5-cyano-2-[(R)-6-methoxycarbonyl-7-methyl-3-oxo-8-(3-trifluoromethyl-phenyl)-2,3,5,8-tetrahydro-[1,2,4]triazolo[4,3-a]pyrimidin-5-yl]-benzyl}-trimethyl-ammonium formate 、 alkaline earth salt of/the/ methylsulfuric acid 以
水 、
乙腈 为溶剂,
反应 0.83h,
以0.9 g的产率得到{5-cyano-2-[(R)-6-methoxycarbonyl-7-methyl-3-oxo-8-(3-trifluoromethyl-phenyl)-2,3,5,8-tetrahydro-[1,2,4]triazolo[4,3-a]pyrimidin-5-yl]-benzyl}-trimethyl-ammonium benzenesulfonate