ethyl (Z,2S,3R,4R)-3-ethenyl-2,4-dihydroxy-8-[5-(hydroxymethyl)furan-2-yl]-7-pyridin-2-yloct-7-enoate;ethyl (Z,2S,3R,4R)-2,4-dihydroxy-8-[5-(hydroxymethyl)-2-furyl]-7-(2-pyridyl)-3-vinyl-oct-7-enoate;(Z,2S,3R,4R)-2,4-dihydroxy-8-[5-(hydroxymethyl)-2-furyl]-7-(2-pyridyl)-3-vinyloct-7-enoic acid ethyl ester;(Z,2S,3R,4R)-2,4-dihydroxy-8-(5-methylol-2-furyl)-7-(2-pyridyl)-3-vinyl-oct-7-enoic acid ethyl ester;ethyl (Z,2S,3R,4R)-3-ethenyl-2,4-dihydroxy-8-[5-(hydroxymethyl)furan-2-yl]-7-pyridin-2-yl-oct-7-enoate
ethyl (Z,2S,3R,4R)-3-ethenyl-2,4-dihydroxy-8-[5-(hydroxymethyl)furan-2-yl]-7-pyridin-2-yloct-7-enoate