Multi-step reaction with 9 steps
1: triethylamine; ozone / dichloromethane / 1 h / -78 °C / Cooling with acetone-dry ice; Inert atmosphere
2: hydrogenchloride / 1,4-dioxane; methanol / 2 h / 20 °C
3: potassium carbonate / ethyl acetate; toluene / 1 h / 0 °C / Cooling with ice
4: tetrahydrofuran / 16 h / 20 °C
5: N-ethyl-N,N-diisopropylamine / acetonitrile / 24 h / 20 °C
6: N-ethyl-N,N-diisopropylamine / acetonitrile / 48 h / Reflux
7: potassium carbonate; water / tetrahydrofuran / 20 h / 40 °C
8: 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride / N,N-dimethyl-formamide / 23 h / 20 °C
9: trifluoroacetic acid / methoxybenzene / 15 h / 80 °C
With
hydrogenchloride; water; potassium carbonate; ozone; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; triethylamine; N-ethyl-N,N-diisopropylamine; trifluoroacetic acid;
In
tetrahydrofuran; 1,4-dioxane; methanol; dichloromethane; ethyl acetate; methoxybenzene; N,N-dimethyl-formamide; toluene; acetonitrile;