Multi-step reaction with 11 steps
1: sodium hydroxide; water / ethanol; tetrahydrofuran / 64 °C
2: N-ethyl-N,N-diisopropylamine / N,N-dimethyl-formamide / 1 h / 0 - 20 °C
3: sodium hydroxide; water / ethanol / 70 °C
4: triethylamine / dichloromethane / 23 h / 0 - 20 °C / Inert atmosphere
5: caesium carbonate / tetrakis(triphenylphosphine) palladium(0) / 1,4-dioxane; water / 90 °C
6: acetic acid; iron / ethanol / 1 h / 90 °C
7: pyridine / 20 - 25 °C
8: sodium carbonate / N,N-dimethyl-formamide / 20 - 100 °C
9: sodium hydroxide; water / ethanol / 4 h / 60 °C
10: hydrogenchloride / tetrahydrofuran / 1 h
11: N-ethyl-N,N-diisopropylamine; HATU / N,N-dimethyl-formamide / 1 h / 20 °C
With
pyridine; hydrogenchloride; water; iron; sodium carbonate; caesium carbonate; acetic acid; triethylamine; N-ethyl-N,N-diisopropylamine; HATU; sodium hydroxide;
tetrakis(triphenylphosphine) palladium(0);
In
tetrahydrofuran; 1,4-dioxane; ethanol; dichloromethane; water; N,N-dimethyl-formamide;