Multi-step reaction with 9 steps
1.1: N-ethyl-N,N-diisopropylamine / dichloromethane / 0 - 20 °C / Inert atmosphere
2.1: triphenylphosphine / tetrahydrofuran / 0.17 h
2.2: 18 h / 20 °C
3.1: lithium chloride; sodium tetrahydroborate / ethanol; tetrahydrofuran / 0 - 20 °C
3.2: 0 °C
4.1: carbon tetrabromide; triphenylphosphine / tetrahydrofuran / 2 h / 20 °C
5.1: sodium azide / N,N-dimethyl-formamide / 1 h / 20 °C
6.1: trifluoroacetic acid / dichloromethane / 1 h / 20 °C
7.1: N-ethyl-N,N-diisopropylamine; HATU / dichloromethane / 3 h / 0 - 20 °C / Inert atmosphere
8.1: hydrogen / palladium 10% on activated carbon / ethanol / 1 h / 2068.65 Torr
9.1: N-ethyl-N,N-diisopropylamine; HATU / dichloromethane / 3 h / 0 - 20 °C
With
sodium tetrahydroborate; sodium azide; carbon tetrabromide; hydrogen; N-ethyl-N,N-diisopropylamine; triphenylphosphine; HATU; trifluoroacetic acid; lithium chloride;
palladium 10% on activated carbon;
In
tetrahydrofuran; ethanol; dichloromethane; N,N-dimethyl-formamide;