Multi-step reaction with 7 steps
1.1: triethylamine / dichloromethane / 3 h / 0 - 20 °C
2.1: triphenylphosphine; di-isopropyl azodicarboxylate / toluene / 26 h / 0 - 30 °C
3.1: N-iodo-succinimide / zirconium(IV) chloride / dichloromethane / 0.5 h / 20 °C / Inert atmosphere
4.1: N,N,N,N,N,N-hexamethylphosphoric triamide; copper(l) iodide / N,N-dimethyl-formamide / 6 h / 80 °C / Inert atmosphere
5.1: n-butyllithium / tetrahydrofuran / 0.5 h / -78 °C
5.2: 1.5 h / -78 °C
6.1: ethanol / 1 h / Reflux
7.1: ethanol; sodium cyanoborohydride / Reflux
With
N,N,N,N,N,N-hexamethylphosphoric triamide; N-iodo-succinimide; copper(l) iodide; n-butyllithium; ethanol; di-isopropyl azodicarboxylate; sodium cyanoborohydride; triethylamine; triphenylphosphine;
zirconium(IV) chloride;
In
tetrahydrofuran; ethanol; dichloromethane; N,N-dimethyl-formamide; toluene;