Multi-step reaction with 9 steps
1: 4-methyl-morpholine / dichloromethane / 18 h / 20 °C / Cooling with ice
2: 1,8-diazabicyclo[5.4.0]undec-7-ene / 1,4-dioxane / 1 h / 60 °C
3: potassium carbonate; 18-crown-6 ether / N,N-dimethyl-formamide / 2 h / 60 °C
4: N-chloro-succinimide; dichloro-acetic acid / isopropyl alcohol / 3 h / 20 - 30 °C
5: sodium hydroxide / tetrahydrofuran
6: tetrahydrofuran / 18 h / 20 °C / Cooling with ice
7: potassium carbonate / acetonitrile / 18 h / 75 °C
8: trifluoroacetic acid / dichloromethane / 1 h / 20 °C
9: potassium carbonate; 18-crown-6 ether / N,N-dimethyl-formamide / 18 h / 60 °C
With
4-methyl-morpholine; dichloro-acetic acid; N-chloro-succinimide; 18-crown-6 ether; potassium carbonate; 1,8-diazabicyclo[5.4.0]undec-7-ene; trifluoroacetic acid; sodium hydroxide;
In
tetrahydrofuran; 1,4-dioxane; dichloromethane; N,N-dimethyl-formamide; isopropyl alcohol; acetonitrile;