3-[(2E)-3-(6-chloro(3-pyridyl))prop-2-enoyl](4R)-4-benzyl-1,3-oxazolidin-2-one

methyl (2S,1R,3R,4R)-6-aza-1-(triethylsilyloxy)-3-(6-chloro(3-pyridyl))-5-oxobicyclo[2.2.2]octane-2-carboxylate

(5S,1R,3R,4R)-3-aza-4-(triethylsilyloxy)-6-(6-chloro(3-pyridyl))-5-(methoxycarbonyl)bicyclo[2.2.2]oct-2-en-2-yl (tert-butoxy)formate

6-氯烟酸

6-氯烟醛