3-methyl-4-methylsulfanyl-3,5-diazabicyclo[4.1.0]hept-4-en-2-one

dimethylsulphoxonium(3-methyl-4-oxopyrimidin-2-yl)methylide

1-[[2-(4-chlorophenyl)oxiran-2-yl]methyl]-1,2,4-triazole

4-methylideneisochromen-1-one