反应详情

The starting material tert-butyl 4-hydroxy-4-{[(3-nitroquinolin-4-yl)amino]methyl}piperidine-1-carboxylate (20.23 g, 50.3 mmol) was divided into two portions. To each portion was added ethanol (220 mL) and 5% platinum on carbon (1.1 g). Both portions were hydrogenated on a Parr apparatus at 40 psi (2.8×105 Pa) overnight. The mixtures were filtered through CELITE filter agent. The filtrates were combined and concentrated to provide the product tert-butyl 4-{[(3-aminoquinolin-4-yl)amino]methyl}-4-hydroxypiperidine-1-carboxylate as a brown oil. The product was concentrated twice from toluene and once from chloroform and used in the subsequent experiment.

1. customwere hydrogenated on a Parr apparatus at 40 psi (2.8×105 Pa) overnight
2. filtrationThe mixtures were filtered through CELITE
3. filtrationfilter agent
4. concentrationconcentrated