(R)-1-[(4R,6R)-6-(4-Methoxy-benzyloxymethyl)-2,2-dimethyl-[1,3]dioxan-4-yl]-9-methyl-8-methylene-6,10-bis-triethylsilanyloxy-dec-3-yn-2-ol

1-[(4S,6R)-6-(4-Methoxy-benzyloxymethyl)-2,2-dimethyl-[1,3]dioxan-4-yl]-3-[2-((R)-5-methyl-4-methylene-2,6-bis-triethylsilanyloxy-hexyl)-[1,3]dithian-2-yl]-propan-2-one

[(4S,6R)-6-(p-methoxybenzyloxymethyl)-2,2-dimethyl[1,3]dioxan-4-yl]acetaldehyde

[(2R,4S,6R,8S,10S)-8-(2-Benzyloxy-ethyl)-4-methyl-4,10-bis-triethylsilanyloxy-1,7-dioxa-spiro[5.5]undec-2-yl]-acetaldehyde

2-[(2S,4S,6R,8S,10S)-8-(2-Benzyloxy-ethyl)-4-methyl-4,10-bis-triethylsilanyloxy-1,7-dioxa-spiro[5.5]undec-2-yl]-ethanol