Multi-step reaction with 11 steps
1: hydrogen / methanol / 3 h / 20 °C
2: dmap / tetrahydrofuran / 16 h / 20 °C
3: lithium hydroxide monohydrate / methanol / 60 °C
4: triethylamine; benzotriazol-1-ol; ammonium chloride; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride / N,N-dimethyl-formamide / 20 °C
5: trifluoroacetic acid / dichloromethane / 0.5 h / 20 °C
6: potassium carbonate / N,N-dimethyl-formamide / 17 h / 20 °C
7: acetic acid / 13 h / 20 - 110 °C
8: potassium carbonate / N,N-dimethyl-formamide / 15 h / 20 °C
9: water; lithium hydroxide monohydrate / methanol; tetrahydrofuran / 3 h / 20 °C
10: N,N-dimethyl-formamide / 15 h / 20 °C
11: triethylamine; 1-hydroxy-7-aza-benzotriazole; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride / N,N-dimethyl-formamide / 15 h / 0 - 20 °C
With
dmap; 1-hydroxy-7-aza-benzotriazole; lithium hydroxide monohydrate; water; hydrogen; potassium carbonate; ammonium chloride; benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; triethylamine; trifluoroacetic acid;
In
tetrahydrofuran; methanol; dichloromethane; acetic acid; N,N-dimethyl-formamide;
DOI:10.1016/j.bmc.2014.02.002