Multi-step reaction with 9 steps
1.1: N-Bromosuccinimide / acetonitrile / 140 °C / Pressure tube, sealed
2.1: N,N-dimethyl-formamide dimethyl acetal / N,N-dimethyl-formamide / 16 h / 140 °C
2.2: 8 h / 0 °C
3.1: tetrahydrofuran / -78 °C
4.1: N-ethyl-N,N-diisopropylamine / tetrahydrofuran / 20 °C / Inert atmosphere
5.1: 1H-tetrazole / acetonitrile / 3 h / 20 °C
6.1: di-tert-butyl peroxide / toluene / 1 h / 20 °C
7.1: lithium iodide / pyridine / Reflux
8.1: hydrogenchloride / dichloromethane; methanol / 2.5 h / 50 - 60 °C
9.1: potassium carbonate / dichloromethane; N,N-dimethyl-formamide / 48 h
With
1H-tetrazole; hydrogenchloride; N-Bromosuccinimide; di-tert-butyl peroxide; potassium carbonate; N,N-dimethyl-formamide dimethyl acetal; N-ethyl-N,N-diisopropylamine; lithium iodide;
In
tetrahydrofuran; pyridine; methanol; dichloromethane; N,N-dimethyl-formamide; toluene; acetonitrile;