681248-31-7
3-methyl-2-[4-(4-methylphenylsulphonylthio)-2-oxo-3-phenoxyacetaminoazetidin-1-yl]-3-butenoic acid diphenylmethyl ester
+
1147535-04-3
2,3-dimethyl-5-trifluoromethanesulfonyloxypyrazine
→
~81%
75492-01-2
2,3-二甲基-5-(2-甲基丁基)吡嗪
57229-36-4
2,3-二甲基-5-羟基吡嗪