2-(chloromethyl)-4,5,6,7-tetrahydro-3aH-isoxazolo[2,3-a]pyridine

2,3,4,5-tetrahydropyridine 1-oxide

(2-吡啶甲基)锂

1-吡啶-2-基-2-丙酮

3-氧丁酸