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

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

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

tert-Butyl-dimethyl-((E)-2,5,5-trimethyl-1-prop-2-ynyl-oct-2-en-7-ynyloxy)-silane