Multi-step reaction with 10 steps
1.1: triethylamine / dichloromethane / 5 h / 20 °C
2.1: 1H-imidazole / N,N-dimethyl-formamide / 16 h
3.1: lithium aluminium tetrahydride / tetrahydrofuran / 0.25 h / -20 °C
4.1: di-isopropyl azodicarboxylate; triethylamine; triphenylphosphine / tetrahydrofuran / 0 - 20 °C / Inert atmosphere
5.1: hydrogen / palladium on activated carbon / methanol / 16 h / 20 °C
6.1: caesium carbonate; 2,2'-bis-(diphenylphosphino)-1,1'-binaphthyl / palladium diacetate / toluene / 16 h / 110 °C / Inert atmosphere
7.1: hydrogen / palladium on activated carbon / methanol / 16 h / 20 °C
8.1: di-tert-butyl dicarbonate / 1-methyl-pyrrolidin-2-one / 1 h / 20 °C
8.2: 1.5 h / 0 °C
9.1: hydrogen fluoride / water / 0 - 20 °C
10.1: trifluoroacetic acid / dichloromethane / 0 - 20 °C
10.2: 0 °C
With
1H-imidazole; lithium aluminium tetrahydride; di-tert-butyl dicarbonate; di-isopropyl azodicarboxylate; hydrogen fluoride; hydrogen; caesium carbonate; 2,2'-bis-(diphenylphosphino)-1,1'-binaphthyl; triethylamine; triphenylphosphine; trifluoroacetic acid;
palladium on activated carbon; palladium diacetate;
In
tetrahydrofuran; 1-methyl-pyrrolidin-2-one; methanol; dichloromethane; water; N,N-dimethyl-formamide; toluene;