Multi-step reaction with 10 steps
1.1: potassium carbonate / tetrahydrofuran / Inert atmosphere
2.1: diisobutylaluminium hydride / dichloromethane; tetrahydrofuran / 5.75 h / -78 - 20 °C / Inert atmosphere
2.2: 1.33 h / Cooling with ice
3.1: acetic acid / 2 h / 90 °C / Inert atmosphere
4.1: 125 °C
5.1: zinc; ammonium chloride / tetrahydrofuran; methanol / 3 h / Inert atmosphere
5.2: pH ~ 11
6.1: hydrogenchloride / toluene; 1,4-dioxane / 16 h / 20 °C
6.2: pH 10
6.3: 3.5 h / 125 °C
7.1: water; lithium hydroxide monohydrate / tetrahydrofuran; methanol / 1.5 h
7.2: pH 4 - 5
8.1: (benzotriazo-1-yloxy)tris(dimethylamino)phosphonium hexafluorophosphate; N-ethyl-N,N-diisopropylamine; 4-methyl-morpholine; ammonium chloride / N,N-dimethyl-formamide / 2 h / Inert atmosphere
9.1: hydrogen / palladium 10% on activated carbon / tetrahydrofuran; methanol / 2 h
10.1: acetic acid; sodium tris(acetoxy)borohydride / dichloromethane; tetrahydrofuran / Inert atmosphere
With
4-methyl-morpholine; hydrogenchloride; lithium hydroxide monohydrate; water; hydrogen; sodium tris(acetoxy)borohydride; diisobutylaluminium hydride; potassium carbonate; (benzotriazo-1-yloxy)tris(dimethylamino)phosphonium hexafluorophosphate; ammonium chloride; acetic acid; N-ethyl-N,N-diisopropylamine; zinc;
palladium 10% on activated carbon;
In
tetrahydrofuran; 1,4-dioxane; methanol; dichloromethane; N,N-dimethyl-formamide; toluene;