Multi-step reaction with 7 steps
1.1: dichloromethane / 1 h / Cooling
2.1: pyridine / 3 h / 85 °C
3.1: caesium carbonate / 4,5-bis(diphenylphosphino)-9,9-dimethylxanthene; tris-(dibenzylideneacetone)dipalladium(0) / 1,4-dioxane / 16 h / 25 - 100 °C / Inert atmosphere
4.1: hydrogenchloride / dichloromethane; 1,4-dioxane / 16 h / 25 °C
5.1: N-ethyl-N,N-diisopropylamine; HATU / N,N-dimethyl-formamide / 16 h / 0 - 25 °C
6.1: water; lithium hydroxide monohydrate / tetrahydrofuran; methanol / 4 h / 25 °C
6.2: pH 5
7.1: N-ethyl-N,N-diisopropylamine; HATU / N,N-dimethyl-formamide / 16 h / 0 - 25 °C
With
pyridine; hydrogenchloride; lithium hydroxide monohydrate; water; caesium carbonate; N-ethyl-N,N-diisopropylamine; HATU;
tris-(dibenzylideneacetone)dipalladium(0); 4,5-bis(diphenylphosphino)-9,9-dimethylxanthene;
In
tetrahydrofuran; 1,4-dioxane; methanol; dichloromethane; N,N-dimethyl-formamide;