4,4-dimethyl-2-(4-methyl-4H-pyridin-3-ylidene)-1,3-oxazolidine

2-(4-butyl-4H-pyridin-3-ylidene)-4,4-dimethyl-1,3-oxazolidine

2-(4-butylpyridin-3-yl)-4,4-dimethyl-5H-1,3-oxazole

3-O-methyl 1-O-phenyl 4-methyl-4H-pyridine-1,3-dicarboxylate

N-乙基烟酰胺