Multi-step reaction with 17 steps
1.1: triethylamine / tetrahydrofuran / 20 °C / Cooling with ice; Inert atmosphere
2.1: n-butyllithium; N,N,N',N'',N'''-pentamethyldiethylenetriamine / hexane; tetrahydrofuran / 3 h / -72 - -56 °C / Inert atmosphere
2.3: 10 - 20 °C
3.1: guanidine hydrochloride / methanol / 1.5 h / 40 °C / Inert atmosphere
3.2: 22 h / 40 °C
4.1: potassium carbonate; sodium iodide / N,N-dimethyl-formamide / 13.5 h / 70 °C / Inert atmosphere
5.1: water; diammonium sulfide / tetrahydrofuran; methanol / 20 °C
6.1: acetonitrile / 0.83 h / 20 °C / Cooling
7.1: 2,4,6-trimethyl-pyridine / ethyl acetate; toluene / 85 °C
8.1: triethylamine / toluene / 4.17 h / 50 - 110 °C
9.1: acetic acid; 2-picoline borane complex / water; methanol / 24 h / 20 °C
10.1: sodium hydroxide; water / tetrahydrofuran; methanol / 23.5 h / 20 °C
10.2: 0.33 h
11.1: acetyl chloride; methanol / 18.5 h / 5 - 10 °C
11.2: 18 h / 10 - 20 °C
11.3: 18 h / 20 °C
12.1: triethylamine / methanol / 0.25 h / 60 °C
12.2: 23 h / 0 - 20 °C
13.1: hydrogenchloride / ethanol; water; methanol / 20 °C
14.1: potassium carbonate / dimethyl sulfoxide / 96 h / 20 °C
15.1: triethylamine / dmap / N,N-dimethyl-formamide / 1.33 h / 20 °C
16.1: rubidium carbonate / N,N-dimethyl acetamide / 1.25 h / 85 °C / Inert atmosphere
17.1: ethyl acetate / 20 °C
With
rubidium carbonate; 2,4,6-trimethyl-pyridine; hydrogenchloride; methanol; diammonium sulfide; n-butyllithium; 2-picoline borane complex; N,N,N',N'',N'''-pentamethyldiethylenetriamine; water; guanidine hydrochloride; potassium carbonate; acetic acid; triethylamine; acetyl chloride; sodium iodide; sodium hydroxide;
dmap;
In
tetrahydrofuran; methanol; ethanol; hexane; N,N-dimethyl acetamide; water; dimethyl sulfoxide; ethyl acetate; N,N-dimethyl-formamide; toluene; acetonitrile;