ethyl 4-((3S)-3-benzyloxy-2,2-dimethyl-pent-4-en-1-yl)-2-ethoxy-5(Z)-benzoylmethylidene-1,3-cyclopentadiene-1-carboxylate

(3S)-3-(benzyloxy)-2,2-dimethyl-4-penten-1-ol

(S)-3-(benzyloxy)-2,2-dimethylpent-4-enal

(4S)-4-benzyloxy-3,3-dimethyl-5-hexenal

(3S,6RS)-3-benzyloxy-4,4-dimethyl-6-hydroxy-1-octen-7-yne