Imidazole → HCID 58970703, compound

Participants

Reaction Conditions

Reaction Steps

Copper (I) iodide (0.06 g, 0.53 mmol), potassium phosphate (1.18 g, 5.56 mmol), and imidazole (0.22 g, 3.17 mmol) were added to a glass tube. Sequential addition of 7-bromo-2-(ethoxymethyl)-1-(2-methylpropyl)-1H-imidazo[4,5-c][1,5]naphthyridin-4-amine (1.0 g, 2.64 mmol), trans-1,2-diaminocyclohexane (0.06 g, 0.53 mmol) and dioxane (9 mL) followed. The tube was flushed with nitrogen, sealed, and heated to 110° C., and the reaction mixture was stirred for 10 days. The reaction mixture was then diluted with a 1:1 mixture of chloroform and methanol (50 mL) and filtered through CELITE filter aid. The filtrate was concentrated under reduced pressure to give a black liquid, which was purified by automated flash chromatography (using a silica gel cartridge, eluting with CMA:chloroform ranging in ratios from 0:100 to 20:80), and concentrated under reduced pressure. The residue was recrystallized from diethyl ether to give 0.18 g of 2-(ethoxymethyl)-7-(imidazol-1-yl)-1-(2-methylpropyl)-1H-imidazo[4,5-c][1,5]naphthyridin-4-amine as a tan solid, mp 175-176° C.

Provenance & Evidence