Multi-step reaction with 9 steps
1.1: caesium carbonate / N,N-dimethyl-formamide / 15 h / 50 °C
2.1: hydrogen / palladium on activated charcoal / methanol / 12 h / 20 °C
3.1: oxalyl dichloride / N,N-dimethyl-formamide / tetrahydrofuran / 3 h / 20 °C
3.2: 13 h / 20 °C
4.1: dimethyl sulfoxide / 12 h / 20 °C
5.1: pyridine / 2 h / 80 °C
6.1: N-ethyl-N,N-diisopropylamine / N,N-dimethyl-formamide / 1 h / 20 °C
6.2: 71 h / 20 °C
7.1: trifluoroacetic anhydride / tetrahydrofuran / 2 h / 20 °C
7.2: 19 h / 20 °C
8.1: benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; N-ethyl-N,N-diisopropylamine / N,N-dimethyl acetamide / 21 h / 20 °C
9.1: N-ethyl-N,N-diisopropylamine; 2,2,2-Trichloroethyl chloroformate / tetrahydrofuran / 0.5 h / 20 °C
9.2: 22 h / 80 °C
With
pyridine; oxalyl dichloride; hydrogen; benzotriazol-1-ol; caesium carbonate; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; N-ethyl-N,N-diisopropylamine; trifluoroacetic anhydride; 2,2,2-Trichloroethyl chloroformate;
palladium on activated charcoal; N,N-dimethyl-formamide;
In
tetrahydrofuran; methanol; N,N-dimethyl acetamide; dimethyl sulfoxide; N,N-dimethyl-formamide;