Multi-step reaction with 10 steps
1: cesium iodide; caesium carbonate / acetonitrile / 4 h / 60 °C / Inert atmosphere
2: N,N-dimethyl-formamide / 22 h / 18 - 80 °C / Inert atmosphere
3: potassium carbonate; t-butyl bromide / acetonitrile / 18 - 55 °C / Inert atmosphere
4: trifluoroacetic acid; triethylsilane / 1.5 h / 18 - 25 °C / Inert atmosphere
5: 2,6-dimethylpyridine; O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate / dichloromethane / 3.5 h / 18 - 25 °C / Inert atmosphere
6: trifluoroacetic acid; triethylsilane / 1 h / 18 - 25 °C / Inert atmosphere
7: 4-methyl-morpholine; O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate / dichloromethane / 87 h / 18 - 25 °C / Inert atmosphere
8: trifluoroacetic acid / dichloromethane / 25 h / 18 - 25 °C / Inert atmosphere
9: 4-methyl-morpholine; O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate / N,N-dimethyl-formamide / 1 h / 18 - 25 °C / Inert atmosphere
10: trifluoroacetic acid / dichloromethane / 3.5 h / 18 - 25 °C / Inert atmosphere
With
4-methyl-morpholine; 2,6-dimethylpyridine; triethylsilane; t-butyl bromide; potassium carbonate; caesium carbonate; O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate; trifluoroacetic acid; cesium iodide;
In
dichloromethane; N,N-dimethyl-formamide; acetonitrile;