6-(7'-drimen-11'-ylidene)-3,4-methylenedioxy-2,4-cyclohexadienone

8-epi-19,20-di-O-methylenepuupehenol

8-epi-19,20-di-O-benzyl-puupehenol

(1S,2S)-1,3,3-trimethyl-2-(3-oxobutyl)cyclohexyl formate