Multi-step reaction with 13 steps
1.1: dmap / tetrahydrofuran / 1 h / 20 °C
2.1: 5% rhodium on activated aluminium oxide; hydrogen / tetrahydrofuran / 48 h / 50 °C / 10343.2 Torr
3.1: triethylamine / dichloromethane / 0.5 h / 0 °C
4.1: lithium borohydride / tetrahydrofuran / 2 h / 55 °C
5.1: Dess-Martin periodane / dichloromethane / 3 h / 20 °C
6.1: n-butyllithium / tetrahydrofuran; hexane / 2 h / 20 °C
6.2: 3 h / 20 °C
7.1: hydrogenchloride; water / 1,4-dioxane / 2 h / 20 °C
8.1: benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; 4-methyl-morpholine / dichloromethane / 0.25 h / 0 °C
8.2: 20 °C
9.1: Grubbs catalyst first generation / dichloromethane / 40 °C / Inert atmosphere
10.1: hydrogenchloride; water / 1,4-dioxane / 1 h / 20 °C
11.1: benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; 4-methyl-morpholine / dichloromethane / 0.25 h / 0 °C
11.2: 2 h / 0 - 20 °C
12.1: palladium 10% on activated carbon; hydrogen / methanol / 1 h / 20 °C
13.1: dichloromethane / 1 h / 20 °C
13.2: 20 °C
With
4-methyl-morpholine; Grubbs catalyst first generation; hydrogenchloride; dmap; lithium borohydride; n-butyllithium; 5% rhodium on activated aluminium oxide; palladium 10% on activated carbon; water; hydrogen; benzotriazol-1-ol; Dess-Martin periodane; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; triethylamine;
In
tetrahydrofuran; 1,4-dioxane; methanol; hexane; dichloromethane;
DOI:10.1016/j.bmcl.2014.02.016