pent-3-yn-1-yl 3-nitrobenzenesulfonate

戊-3-炔基 4-甲基苯磺酸酯

2-methylcyclobutenyl 2,2,2-trifluoroethyl ether

1-methylsulfinyl-1-methylthio-2-methylcyclobutane

1-(1-methyl-2,5-dioxacyclopentyl)ferrocene