diethyl 2-acetamido-2-(5-hydroxypyridin-2-ylmethyl)malonate

ethyl (D,L)-2-acetamido-3-(5-hydroxypyridin-2-yl)propanoate

5-benzenesulfonyloxy-2-methylpyridine N-oxide

5-benzenesulfonyloxy-2-hydroxymethylpyridine

(2R,5S)-2,5-dihydro-3,6-dimethoxy-2-isopropyl-5-[(5-benzenesulfonyloxypyridin-2-yl)methyl]pyrazine