2,5-dimethyl-2-ethyl-Δ5-pyrroline oxide

5-ethyl-5-nitrohexan-2-one

1-benzenesulfonyloxy-2-methyl-butane

1-溴-2-甲基丁烷

2,4-Diamino-4,6-diethyl-6-methyl-cyclohex-2-ene-1,1,3-tricarbonitrile