ethyl (5R,E)-5-(tert-butyldimethylsilyloxy)-8-trimethylsilyl-2-octen-7-ynoate

(3aR,5R,6aR)-5-(tert-Butyl-dimethyl-silanyloxy)-3a-(3-hydroxy-1-methylene-propyl)-hexahydro-pentalen-2-one

(1R,5R,7R)-7-(tert-butyldimethylsilyloxy)-1-[4-(1-ethoxyethyloxy)but-1-en-2-yl]bicyclo[3.3.0]octan-3-one

Methanesulfonic acid 3-[(2R,3aR,6aR)-2-(tert-butyl-dimethyl-silanyloxy)-5-oxo-hexahydro-pentalen-3a-yl]-but-3-enyl ester

(R)-1-(trimethylsilyl)hept-1-yn-4-ol