Tert-butyl 5-oxo-5h-spiro[furo[3,4-b]pyridine-7,4'-piperidine]-1'-carboxylate
5H-Spiro[furo[3,4-b]pyridine-7,4'-piperidin]-5-one hydrochloride
2-(Hydroxymethyl)-5-methoxypyridin-4-ol
(6-(Methoxycarbonyl)-4-methylpyridin-3-yl)boronic acid pinacol ester