2-hydroxy-9-methyldec-8-en-5-one

4-Carbomethoxy-9-methyl-8-decen-2,5-dion

2-(3-methyl-2-butenyl)-3-methyl-5-(phenylthio)-2-cyclopenten-1-one

Ethyl 2-chloro-3-methyl-3-butenoate

ethyl 2-chloro-5-methyl-2-(prop-1-en-2-yl)hex-4-enoate