HCID 86642102, compound → HCID 68596222, compound

Participants

Reaction Steps

A solution of phenylmethyl (1-{[(2R)-4,9-dioxo-1,2,8,9-tetrahydro-4H,7H-imidazo[1,2,3-ij]-1,8-naphthyridin-2-yl]methyl}-4-methyl-4-piperidinyl)carbamate (1.848 g, 4.10 mmol) in ethanol at rt under argon was treated with palladium on carbon (10% paste) (0.462 g, 4.34 mmol) (20% w/w) and stirred under 1 atmosphere of hydrogen for 2 h, reaction mixture was filtered through a thin pad of Kielselguhr eluting with ethanol (100 ml). The filtrate was treated with palladium on carbon (10% paste) (0.462 g, 4.34 mmol) and stirred under 1 atm of hydrogen for 18 h. The reaction mixture was filtered through a thin pad of Kielselguhr eluting with ethanol (500 ml) and the filtrate was then evaporated to give the product as a yellow solid (1.294 g, 100%).

Provenance & Evidence