[(2R,4S,6R,8R,10S)-4-acetoxy-8-{2-[2-((1S)-4-methoxybenzyloxy)-1-methylethyl]-allyl}-10-methyl-10-triethylsilanyloxy-1,7-dioxaspiro[5.5]undec-2-yl]acetic acid tert-butyl ester

2-((4R,6R)-6-{(2S)-3-[1,1-bis(1-methylethyl)-2-methyl-1-silapropoxy]-2-[(4-methoxyphenyl)methoxy]propyl}-2,2-dimethyl-1,3-dioxan-4-yl)ethanal

4-(6-{(2S)-3-[1,1-bis(1-methylethyl)-2-methyl-1-silapropoxy]-2-[(4-methoxyphenyl)methoxy]propyl}(4S,6R)-2,2-dimethyl(1,3-dioxan-4-yl))(2S,3R)-3-hydroxy-N-methoxy-2-methyl-N-methylbutanamide

4-((4R,6R)-6-{(2S)-3-[1,1-bis(1-methylethyl)-2-methyl-1-silapropoxy]-2-[(4-methoxyphenyl)methoxy]propyl}-2,2-dimethyl(1,3-dioxan-4-yl))(2S,3R)-2-methyl-3-(tert-butyldimethylsilyloxy)butan-1-one

4-((4R,6R)-6-{(2S)-3-[1,1-bis(1-methylethyl)-2-methyl-1-silapropoxy]-2-[(4-methoxyphenyl)methoxy]propyl}-2,2-dimethyl(1,3-dioxan-4-yl))(2S,3R)-N-methoxy-2-methyl-N-methyl-3-(tert-butyldimethylsilyloxy)butanamide