Reaktion #2166321

Reaktionsgleichung

5-{(8-methoxy-4H-benzo[1,3]dioxin-6-yl)-[4-(5-methyl-[1,2,4]oxadiazol-3-yl)phenylamino]methyl}-2-pyrimidin-2-yl-2,4-dihydro-[1,2,4]triazol-3-one

water

acetic acid

1g

2-{3-[(4-carbamimidoylphenylamino)-(2-fluoro-4,5-dimethoxyphenyl)methyl]5-oxo-4,5-dihydro-[1,2,4]triazol-1-yl}benzoic Acid trifluoroacetate

water

acetic acid

→

title compound

4-{[(8-methoxy-4H-benzo[1,3]dioxin-6-yl) -(5-oxo-1-pyrimidin-2-yl-4,5-dihydro-1H-[1,2,4]triazol-3-yl)methyl]amino}benzamidine Acetate

Lösungsmittel

methanol

methanol

Reaktionsbedingungen

Aufarbeitung

1. 1
   FiltrationAfter filtering the reaction mixture, it
2. 2
   Sonstigewas purified by reverse-phase high performance liquid chromatography (acetonitrile-water, 0.1% acetic acid)

Vorschrift

To a solution of 814 mg of 5-{(8-methoxy-4H-benzo[1,3]dioxin-6-yl)-[4-(5-methyl-[1,2,4]oxadiazol-3-yl)phenylamino]methyl}-2-pyrimidin-2-yl-2,4-dihydro-[1,2,4]triazol-3-one in 15 ml of a methanol:water:acetic acid=1:1:1 mixed solvent there was added 1g of iron powder, and the mixture was stirred overnight at 60° C. under a nitrogen atmosphere. After adding 7.5 ml of a methanol:water:acetic acid=1:1:1 mixed solvent to the reaction mixture, the mixture was further stirred at 60° C. for 5 hours. After filtering the reaction mixture, it was purified by reverse-phase high performance liquid chromatography (acetonitrile-water, 0.1% acetic acid) to give the title compound (476 mg).

Quelle