8-bromo-1,5,6,8a-tetrahydro-3-(2H)-indolizinone

N-((E)-4-(trimethylsilyl)-4-bromo-3-butenyl)succinimide

1-[2-(3-butenyl)-2,5-dihydro-3-thienyl]-1-butanone

dimethyl [1-(1-oxobutyl)-1,5-hexadienyl]phosphonate

1-[2,5-dihydro-2-(2-oxiranylethyl)-3-thienyl]-1-butanone S,S-dioxide