Tert-butyl 4-[3-(6-methoxy-3-oxo-2,3-dihydrobenzofuran-7-yl)prop-2-ynyl]piperidine-1-carboxylate → HCID 178487145, compound

Participants

Reaction Conditions

Reaction Steps

A solution of tert-butyl 4-[3-(6-methoxy-3-oxo-2,3-dihydrobenzofuran-7-yl)prop-2-ynyl]piperidine-1-carboxylate (0.0503 g, 0.130 mmol) in methanol (3 mL) was added with 1H-indazole-3-carboxaldehyde (0.0173 g, 0.119 mmol) and piperidine (5 drops), and the mixture was stirred at 60° C. for 2 hours. The reaction mixture was concentrated, and the resulting residue was purified by silica gel column chromatography (hexane/ethyl acetate) to obtain tert-butyl (Z)-4-(3-{2-[(1H-indazol-3-yl)methylene]-6-methoxy-3-oxo-2,3-dihydrobenzofuran-7-yl}prop-2-ynyl)piperidine-1-carboxylate (0.0293 g, 44%).

Provenance & Evidence