1-((2S,3R,4S)-3,7-bis(tert-butyldimethylsilyloxy)-2,4-dimethylheptyloxy)methyl-4-methoxybenzene

(3S,4R,5E)-3-(tert-butyldimethylsilyloxy)-N-methoxy-N,4-dimethyl-7-(trityloxy)hept-5-enamide

(4R,5S,10S,11R,12S,E)-5,11,15-tris(tert-butyldimethylsilyloxy)-4,10,12-trimethyl-1-trityloxypentadec-2-en-8-yn-7-one

(4R,5S,7S,10S,11R,12S,E)-5,11,15-tris(tert-butyldimethylsilyloxy)-4,10,12-trimethyl-1-(trityloxy)pentadec-2-en-8-yn-7-ol

(2E,4R,5S,7S,8Z,10S,11R,12S)-5,11,15-tris(tert-butyldimethylsilyloxy)-4,10,12-trimethyl-1-(trityloxy)pentadeca-2,8-dien-7-ol