1-(tert-butyl-diphenyl-silanyloxy)-5-(6-[1,3]dioxolan-2-ylmethyl-3-methoxy-3,6-dihydro-2H-pyran-2-yl)-pent-3-yn-2-ol

tert-butyl-[5-(6-[1,3]dioxolan-2-ylmethyl-3-methoxy-3,6-dihydro-2H-pyran-2-yl)-2-methylene-pentyloxy]-diphenyl-silane