Multi-step reaction with 10 steps
1.1: n-butyllithium / hexane; tetrahydrofuran / 1.5 h / -78 - -60 °C
1.2: 2 h / -78 - -60 °C
2.1: hydrogenchloride / 1,4-dioxane / 4 h / 20 °C
3.1: butanone; water / 20 °C / Reflux
4.1: sodium hydroxide / water
5.1: 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride / benzotriazol-1-ol / dichloromethane / 0.5 h / 20 °C
5.2: 20 h / 20 °C
6.1: hydrogenchloride / 1,4-dioxane / 2.5 h / 20 °C
7.1: N-ethyl-N,N-diisopropylamine / dichloromethane / 20 °C
7.2: 1 h
8.1: N-ethyl-N,N-diisopropylamine / acetonitrile / 20 °C / Inert atmosphere; Reflux
9.1: pyridine / dichloromethane / 4 h / 0 - 20 °C
10.1: potassium carbonate / N,N-dimethyl-formamide / 20 °C
With
pyridine; hydrogenchloride; n-butyllithium; potassium carbonate; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; N-ethyl-N,N-diisopropylamine; sodium hydroxide;
benzotriazol-1-ol;
In
tetrahydrofuran; 1,4-dioxane; hexane; dichloromethane; water; N,N-dimethyl-formamide; acetonitrile; butanone;