Multi-step reaction with 8 steps
1.1: hydrogenchloride; water / methanol / 1.5 h / 0 - 20 °C
2.1: dichloromethane / 1.5 h / 20 °C / Molecular sieve; Inert atmosphere
2.2: 0.25 h / -20 °C
3.1: water; acetic acid / 1,2-dichloro-ethane / 2 h / 60 °C
4.1: sodium hydrogencarbonate; 1,3-dibromo-5,5-dimethylimidazolidine-2,4-dione; 2,2,6,6-Tetramethyl-1-piperidinyloxy free radical / tetrahydrofuran / 3.25 h / 0 - 20 °C
4.2: 16 h / 0 - 20 °C
5.1: dmap; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride / 1,4-dioxane / 16 h / 20 °C / Inert atmosphere
6.1: trifluoroacetic acid / 16 h / 0 - 20 °C
7.1: morpholine; acetic acid / toluene / 6.25 h / 0 - 20 °C
8.1: caesium carbonate / dichloromethane / 1.5 h / 0 - 20 °C
With
morpholine; hydrogenchloride; dmap; 2,2,6,6-Tetramethyl-1-piperidinyloxy free radical; 1,3-dibromo-5,5-dimethylimidazolidine-2,4-dione; water; sodium hydrogencarbonate; caesium carbonate; acetic acid; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; trifluoroacetic acid;
In
tetrahydrofuran; 1,4-dioxane; methanol; dichloromethane; 1,2-dichloro-ethane; toluene;