Multi-step reaction with 8 steps
1: N-ethyl-N,N-diisopropylamine / N,N-dimethyl-formamide / 0.5 h / 0 °C / Inert atmosphere
2: lithium chloride / N,N-dimethyl-formamide / 0 - 20 °C / Inert atmosphere
3: N-ethyl-N,N-diisopropylamine / tetrahydrofuran / 20 h / 20 °C / Inert atmosphere
4: triethylsilane; trifluoroacetic acid / dichloromethane / 0 - 20 °C / Inert atmosphere
5: O-(1H-benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate; N-ethyl-N,N-diisopropylamine / N,N-dimethyl-formamide / 3 h / 0 °C / Inert atmosphere
6: piperidine / N,N-dimethyl-formamide / 1 h / 0 °C / Inert atmosphere
7: 2,6-dimethylpyridine / N,N-dimethyl-formamide / 4 h / 0 °C / Inert atmosphere
8: triethylsilane; trifluoroacetic acid / dichloromethane / 0 - 20 °C / Inert atmosphere
With
piperidine; 2,6-dimethylpyridine; triethylsilane; O-(1H-benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate; N-ethyl-N,N-diisopropylamine; trifluoroacetic acid; lithium chloride;
In
tetrahydrofuran; dichloromethane; N,N-dimethyl-formamide;
DOI:10.1021/ja200829s