Multi-step reaction with 8 steps
1.1: lithium aluminium tetrahydride / tetrahydrofuran / 0 - 60 °C / Inert atmosphere
1.2: 0 °C
2.1: tetrahydrofuran / 0.5 h
3.1: triphenylphosphine; diethylazodicarboxylate / tetrahydrofuran / 1 h / 5 °C
4.1: hydrazine hydrate / tetrahydrofuran; methanol / 2 h / 55 °C
5.1: N-ethyl-N,N-diisopropylamine; O-(1H-benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate / N,N-dimethyl-formamide / 0.25 h
5.2: 2 h
6.1: N-ethyl-N,N-diisopropylamine / dichloromethane / 0.02 h / Cooling with ice
6.2: 2.08 h / Cooling with ice
7.1: piperidine / methanol / 4 h / 80 °C / sealed tube
8.1: trifluoroacetic acid / dichloromethane / 2 h
With
piperidine; lithium aluminium tetrahydride; O-(1H-benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate; hydrazine hydrate; N-ethyl-N,N-diisopropylamine; triphenylphosphine; trifluoroacetic acid; diethylazodicarboxylate;
In
tetrahydrofuran; methanol; dichloromethane; N,N-dimethyl-formamide;