HCID 22176382, compound → HCID 22176095, compound

Participants

Reaction Steps

A suspension of tert-butyl[6-(benzyloxy)-2-isobutyl-1-oxo-4-(2-thienyl)-1,2-dihydro-3-isoquinolinyl]methylcarbamate (1.04 g, 2 mmol) and 5% palladium carbon (1.0 g) in ethanol (10 ml) and tetrahydrofuran (10 ml) was stirred under a hydrogen atmosphere at room temperature for 2 h. The catalyst was filtered off and the filtrate was concentrated under reduced pressure. The residue was purified by silica gel column chromatography to give tert-butyl[6-hydroxy-2-isobutyl-1-oxo-4-(2-thienyl)-1,2-dihydro-3-isoquinolinyl]methylcarbamate (0.82 g, 96.5%) as crystals.

Provenance & Evidence