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

Acetic acid (1R,2R,4aS,8aS)-1-iodomethyl-2,5,5,8a-tetramethyl-decahydro-naphthalen-2-yl ester

19,20-di-O-benzyl-puupehenol-6-ene

1,2-di-O-benzyl-4-O-diethylcarbamoylbenzenetriol

4,5-di-O-benzyl-2-bromo-1O-diethylcarbamoylbenzenetriol