6-[2-(2-Morpholin-4-ylethylamino)pyrimidin-4-yl]-2-(2-trimethylsilanyl-ethoxymethyl)-4-[1-(2-trimethylsilanylethoxymethyl)-1H-benzimidazol-2-yl]-2H-pyridazin-3-one → 4-(1H-Benzimidazol-2-yl)-6-[2-(2-morpholin-4-ylethylamino)pyrimidin-4-yl]-2H-pyridazin-3-one

Participants

Reaction Steps

88 mg of 6-[2-(2-morpholin-4-ylethylamino)pyrimidin-4-yl]-2-(2-trimethylsilanyl-ethoxymethyl)-4-[1-(2-trimethylsilanylethoxymethyl)-1H-benzimidazol-2-yl]-2H-pyridazin-3-one are dissolved in 2 ml of a 1:1 mixture of dichloromethane and trifluoroacetic acid, and the mixture is stirred at room temperature for 2 hours. The volatile components are then distilled off, the residue is dissolved in 1 ml of methanol, and 1 ml of a two molar aqueous sodium hydroxide solution is added. The solution is stirred at room temperature for 12 hours and then put directly onto the preparative RP-HPLC (0-100% acetonitrile (+0.05% formic acid) in water (+0.05% formic acid)) to isolate the product.

Provenance & Evidence