rac-diethyl ((R,E)-3-((3aS,4R,6aR)-4-((4-methoxybenzyl)oxy)-5,5-dimethyltetrahydro-1H-spiro[pentalene-2,2'-[1,3]dioxolan]-6a(3H)-yl)but-1-en-1-yl)phosphonate

rac-diethyl ((3R)-1-hydroxy-3-((3aS,4R,6aR)-4-((4-methoxybenzyl)oxy)-5,5-dimethyltetrahydro-1H-spiro[pentalene-2,2'-[1,3]dioxolan]-6a(3H)-yl)butyl)phosphonate

2-(2,2-dimethyl-4-ynyl)-2-hydroxycyclopentan-1-one

(6S,6aR)-6-(4-Methoxy-benzyloxy)-5,5-dimethyl-3-trimethylsilanyl-4,5,6,6a-tetrahydro-1H-pentalen-2-one

7-iodo-2,2,6,6-tetramethyl-2-silahept-3-yne