1-cyano-3-diethylphosphonooxy-1-cyclopentene

3-isopropenylcyclopent-2-enol

(4'R-(2'α(1S*,5R*),4'α,5β))-4',5'-dimethylspiro(bicyclo(3.1.0)hexane-2,2'-(1,3)dioxolane)-1-carboxaldehyde

dimethyl 2-(1,4-dioxaspiro[4.4]nonan-7-yl)malonate

(((3aR,3bS,4R,6R,7R,7aR,7bS)-6-hydroxy-3,7a-dimethyl-3a,3b,4,5,6,7,7a,7b-octahydro-1H-4,7-methanocyclopenta[3,4]cyclobuta[1,2]benzen-6-yl)methyl)(methylimino)(phenyl)-6-sulfanone