丙烷-1-硫醇 、
1-<2-(2,5-dioxo-1H-pyrrol-1-yl)ethyl>-4-<2-<6-(3,4-dihydro-2H-1-benzopyranyl)>-5-oxazolyl>pyridinium trifluoromethanesulfonate 以
水 、
乙腈 为溶剂,
以70%的产率得到1-<2-<3-propylthio-1-(2,5-dioxpyrrolidinyl)>ethyl>-4-<2-<6-(3,4-dihydro-2H-1-benzopyranyl)>-5-oxazolyl>pyridinium trifluoromethanesulfonate