5-hydroxy-5-methyl-4-bromo-3-n-butyl-2(5H)-furanone

5-methylene-4-bromo-3-n-butyl-2(5H)-furanone

5-(trichloromethyl)-4-bromo-3-n-butyl-2(5H)-furanone

lithium (E)-(1-bromo-2-carboxylatohex-1-en-1-yl)lithium

4-Bromo-3-butyl-5-dichloromethylene-5H-furan-2-one