[S-(1α,2β,5α)]-1-[(trimethylsilyl)ethynyl]bicyclo[3.1.0]hexan-2-ol

(1R-cis)-trimethyl((2-methylenebicyclo(3.1.0)hexyl)ethynyl)silane

(R)-2-[(trimethylsilyl)ethynyl]-2-cyclopenten-1-ol

(1S-cis)-1-ethynyl-2-methylenebicyclo(3.1.0)hexane

(1S-cis)-1-ethynylbicyclo[3.1.0]hexan-2-one