(E)-(5S,6R)-5,6,7-Trihydroxy-2-methyl-hept-2-enoic acid ethyl ester

ethyl (E)-2-methyl-4-((2R,4S)-5-oxo-2-phenyl-1,3-dioxan-4-yl)but-2-enoate

(E)-2-Methyl-4-((2R,4S,5R)-5-methyl-2-phenyl-5-trimethylsilanyloxy-[1,3]dioxan-4-yl)-but-2-en-1-ol

[(2R,3R)-2-Methyl-3-((2R,4S,5R)-5-methyl-2-phenyl-5-trimethylsilanyloxy-[1,3]dioxan-4-ylmethyl)-oxiranyl]-methanol