(5R,6S,7R)-5-((S)-sec-butyl)-2,2,6,10,10-pentamethyl-3,3,9,9-tetrakis(trimethylsilyl)-7-(2-((trimethylsilyl)oxy)allyl)-4,8-dioxa-2,3,9,10-tetrasilaundecane

(2R)-1-(1,3-dithian-2-yl)pent-4-en-2-ol

(R)-((1-(1,3-dithian-2-yl)pent-4-en-2-yl)oxy)(tert-butyl)dimethylsilane