Multi-step reaction with 9 steps
1: N-ethyl-N,N-diisopropylamine / acetonitrile / 16 h / 20 °C
2: acetic acid; sodium tris(acetoxy)borohydride / 1,2-dichloro-ethane / 6 h / 20 °C / Inert atmosphere
3: sodium hydroxide / 1,4-dioxane; water / 3 h / 10 - 20 °C
4: zinc; ammonium chloride / methanol / 2 h / 50 °C
5: ethanol / 16 h / 20 °C / Inert atmosphere
6: HATU; N-ethyl-N,N-diisopropylamine / N,N-dimethyl-formamide / 12 h / 0 - 20 °C / Inert atmosphere
7: dichloromethane / 16 h / 0 - 20 °C / Inert atmosphere
8: bromo-tris(1-pyrrolidinyl)phosphonium hexafluorophosphate; triethylamine / dichloromethane / 0.5 h / 0 °C / Sealed tube
9: hydrogen bromide; acetic acid / 0.5 h / 0 - 20 °C / Inert atmosphere
With
hydrogen bromide; sodium tris(acetoxy)borohydride; ammonium chloride; acetic acid; triethylamine; N-ethyl-N,N-diisopropylamine; HATU; bromo-tris(1-pyrrolidinyl)phosphonium hexafluorophosphate; sodium hydroxide; zinc;
In
1,4-dioxane; methanol; ethanol; dichloromethane; water; 1,2-dichloro-ethane; N,N-dimethyl-formamide; acetonitrile;