N,N-dimethyl-2-((1R,5R)-5-vinylcyclopent-2-en-1-yl)acetamide

(3aS,4R,6S,6aS )-6-iodo-4-vinylhexahydro-2H-cyclopenta[b]furan-2-one

(3aS,4R,6aR)-4-vinylhexahydro-2H-cyclopenta[b]furan-2-one