反应详情

A suspension of 0.5 g (2.4 mol) of 2-hydroxymethyl-6-nitro-3-methyl-3H-imidazo[4,5-b]pyridine, prepared in the preceding step, and 0.3 g of 10% palladium-on-charcoal is stirred for 3 hours under 2.5 atm. of hydrogen. After this time, the suspension is filtered through a pad of Celite and the filtrate is concentrated under reduced pressure. 0.4 g of the expected product is thus isolated, and is used without further purification in the rest of the synthesis.

1. filtrationAfter this time, the suspension is filtered through a pad of Celite
2. concentrationthe filtrate is concentrated under reduced pressure