(S)-4-hydroxycyclopent-2-en-1-one
benzoic acid 3-(tert-butyl-dimethyl-silanyloxy)-1-vinyl-pent-4-enyl ester
benzoic acid 1-[2-(tert-butyl-dimethyl-silanyloxy)-3-oxo-propyl]-allyl ester
Benzoic acid 1-[(S)-2-(tert-butyl-dimethyl-silanyloxy)-2-((R)-2,2-dimethyl-[1,3]dioxolan-4-yl)-ethyl]-allyl ester