反应详情

4-Hydroxy-1-methylpiperidine (0.17 g), triphenylphosphine (0.39 g), and diisopropyl azodicarboxylate (0.30 mL) were added to a tetrahydrofuran (3.0 mL) solution of tert-butyl 2-(2-(benzyloxy)-5-hydroxybenzamido)-4-phenylbenzoate (0.15 g), followed by stirring at room temperature for 3 hours and 20 minutes. The solvent was evaporated under reduced pressure, and the obtained residue was purified by silica gel column chromatography [eluent: 60-50% hexane/ethyl acetate to 100-90% chloroform/methanol] to obtain tert-butyl 2-(2-(benzyloxy)-5-((1-methylpiperidin-4-yl)oxy)benzamido)-4-phenylbenzoate.

1. customThe solvent was evaporated under reduced pressure
2. customthe obtained residue was purified by silica gel column chromatography [eluent: 60-50% hexane/ethyl acetate to 100-90% chloroform/methanol]