(S)-4-((1R,2S)-2-Benzyloxy-1-vinyl-but-3-ynyl)-2,2-dimethyl-[1,3]dioxolane

(S)-4-[(1R,2S)-2-Benzyloxy-1-(4-methoxy-benzyloxymethyl)-but-3-ynyl]-2,2-dimethyl-[1,3]dioxolane