(1S-cis)-1-<(trimethylsilyl)ethynyl>bicyclo<3.1.0>hexan-2-one

(1R-(1α(R*),3aβ,4α((E)-(1R*,5R*)),7aα))-1-(1,5-dimethyl-5-((trimethylsilyl)oxy)hexyl)octahydro-7a-methyl-4-(2-(2-methylenebicyclo(3.1.0)hexan-1-yl)ethenyl)-1H-inden-4-ol

[1R-[1α(R*),3aβ,4α(1R*,5R*),7aα]]-1-[1,5-dimethyl-5-[(trimethylsilyl)oxy]hexyl]octahydro-7a-methyl-4-[(2-methylenebicyclo[3.1.0]hexan-1-yl)ethynyl]-1H-inden-4-ol

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

3β-((triethylsilyl)oxy)-20(S)-(hydroxymethyl)-9,10-secopregna-5(E),7(E),10(19)-triene