Hydrochloric Acid → HCID 53825896, compound

Participants

Reaction Steps

To a solution of 4-(4-benzyloxyphenyl)-2-tert-butoxycarbonylamino-2-ethylbutyl acetate (7 g) in ethyl acetate (80 ml) were added a 1 M solution of hydrochloric acid in ether (1 ml) and 10% palladium-carbon (0.4 g) and the suspension was subjected to catalytic reduction under an oridinary atmosphere at room temperature for 160 minutes. Catalyst was filtered off from the reaction mixture and the solvent was distilled away under reduced pressure. The residue obtained was dissolved in ethyl acetate (50 ml) and ethanol (50 ml). To the solution were added 10% palladium-carbon (0.4 g) and a 1 M solution of hydrochloric acid in ether (1 ml) and the suspension was subjected to catalytic reduction under an ordinary atmosphere at room temperature for 140 minutes. Catalyst was filtered off from the reaction mixture and the filtrate was concentrated under reduced pressure to give the subject compound (7.2 g).

Provenance & Evidence