tert-butyl 4-[3-(pyridin-3-ylmethyl)-1,2,4-oxadiazol-5-yl]piperidine-1-carboxylate 以
trifluoracetic acid-dichloromethane 为溶剂,
反应 0.5h,
以to give the di-TFA salt of 3-[(5-piperidin-4-yl-1,2,4-oxadiazol-3-yl)methyl]pyridine as an amber oil (4.0 g, 8.47 mmol, 85%, 3 steps)的产率得到