butyl 6-nitrohexanoate

2,4'-二甲基联苯

6-butoxy-6-oxohexa-2,4-dienoate

5-butoxy-6-chloro-3,5-dihydro-2H-1,4-dioxepine

4-butoxy-2,6-dichloro-4-methylcyclohexa-2,5-dien-1-one