(6R)-(t-butyldimethylsilanyloxymethyl)-(2R)-ethynyl-4-methylene-(3S)-(triisopropylsilanoxy)-tetrahydropyran

(2R,3S,6R)-6-(tert-Butyl-dimethyl-silanyloxymethyl)-2-((E)-2-iodo-vinyl)-4-methylene-3-triisopropylsilanyloxy-tetrahydro-pyran