(4S,5R)-5-[(2,3-dimethyl-2-butyl)dimethylsilyloxymethyl]-2,2,4-trimethyl-4-(2,5-dimethoxy-3,4,6-trimethylphenylethynyl)-1,3-dioxolane
(4S,5S)-5-[(2,3-dimethyl-2-butyl)dimethylsilyloxymethyl]-2,2,4-trimethyl-4-(2,5-dimethoxy-3,4,6-trimethylphenylethynyl)-1,3-dioxolane
(2R,3S)-1-[(2,3-dimethyl-2-butyl)dimthylsilyloxy]-5-(2,5-dimethoxy-3,4,6-trimethylphenyl)-3-methylpent-4-yne-2,3-diol
(2S,3S)-1-[(2,3-dimethyl-2-butyl)dimthylsilyloxy]-5-(2,5-dimethoxy-3,4,6-trimethylphenyl)-3-methylpent-4-yne-2,3-diol
(Z)-1-{5-[(2,3-dimethyl-2-butyl)dimethylsilyloxy]-3-methylpent-3-en-1-yn-1-yl}-2,5-dimethoxy-3,4,6-trimethylbenzene