2-乙烯基环丙烷-1,1-二羧酸二乙酯

diethyl 2,7-diethoxycarbonyl-4-octenedioate

2-ethenylcyclopropane-1,1-dicarbonitrile

1-bromobuta-1,3-diene

[(E)-4-benzylsulfonylbut-2-enyl]sulfonylmethylbenzene