(E)-(2S,5S,6R)-2-Benzyloxy-6-(2,5-dimethoxy-3-nitro-phenyl)-6-methoxy-5-methyl-hex-3-enoic acid methyl ester

[(2R,3S,5S,6R)-2-Benzyloxy-6-(2,5-dimethoxy-3-nitro-phenyl)-3,6-dimethoxy-5-methyl-hexyloxy]-tert-butyl-dimethyl-silane

methyl (E)-4-bromo-2-methylbut-2-enoate

(2R,3R,4E,6S,7R,10S,11R)-3-(tert-Butyldimethylsilyloxy)-11-(2,5-dimethoxy-3-nitrophenyl)-N,7,11-trimethoxy-N,2,4,6,10-pentamethyl-8-oxo-9-<(2-thioxo-3-thiazolidinyl)carbonyl>-4-undecenamide

methyl (E)-4-(dichlorophosphoryl)-2-methylbut-2-enoate