Multi-step reaction with 11 steps
1.1: tetrahydrofuran / Reflux
2.1: n-butyllithium / tetrahydrofuran; hexane / 0.5 h / Inert atmosphere; Cooling with ice
2.2: 2 h / -78 °C / Inert atmosphere
3.1: lithium hydroxide / methanol; water / 48 h / Reflux
4.1: benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; triethylamine / dichloromethane / 0.25 h / Inert atmosphere; Cooling with ice; Molecular sieve
4.2: 4 h / 20 °C / Inert atmosphere; Molecular sieve
5.1: palladium 10% on activated carbon; hydrogen / methanol / 96 h / 20 °C / 3102.97 Torr
6.1: lithium aluminium tetrahydride / tetrahydrofuran / 3.25 h / 20 °C / Cooling with ice
7.1: benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; triethylamine / dichloromethane / 0.25 h / Inert atmosphere; Cooling with ice; Molecular sieve
7.2: 4 h / 20 °C / Inert atmosphere; Molecular sieve
8.1: trifluoroacetic acid / dichloromethane / 1.75 h / 20 °C / Cooling with ice
9.1: benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; triethylamine / N,N-dimethyl-formamide / 0.25 h / Inert atmosphere; Cooling with ice; Molecular sieve
9.2: 20 °C / Inert atmosphere; Molecular sieve
10.1: 5%-palladium/activated carbon; hydrogen / methanol / 48 h / 20 °C / 3102.97 Torr
11.1: benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; triethylamine / N,N-dimethyl-formamide / 0.25 h / Inert atmosphere; Cooling with ice; Molecular sieve
11.2: 20 °C / Inert atmosphere; Molecular sieve
With
lithium aluminium tetrahydride; n-butyllithium; palladium 10% on activated carbon; 5%-palladium/activated carbon; hydrogen; benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; triethylamine; trifluoroacetic acid; lithium hydroxide;
In
tetrahydrofuran; methanol; hexane; dichloromethane; water; N,N-dimethyl-formamide;
DOI:10.1039/c2ob06801j