Multi-step reaction with 8 steps
1.1: thionyl chloride / dichloromethane / 20 °C
1.2: 2 h / 20 °C
2.1: 1,3-dibromo-5,5-dimethylimidazolidine-2,4-dione; dibenzoyl peroxide / tetrachloromethane / 3 h / Reflux
3.1: sodium azide / N,N-dimethyl-formamide / 2 h / 20 °C
4.1: palladium 10% on activated carbon; hydrogen / methanol / 20 °C
5.1: N-ethyl-N,N-diisopropylamine / butan-1-ol / 3 h / 120 °C
6.1: lithium iodide / pyridine / 100 °C
7.1: AD-H column / isopropyl alcohol; diethylamine / Resolution of racemate
8.1: N-ethyl-N,N-diisopropylamine; benzotriazol-1-yloxyl-tris-(pyrrolidino)-phosphonium hexafluorophosphate / N,N-dimethyl-formamide / 1 h / 20 °C
With
thionyl chloride; sodium azide; 1,3-dibromo-5,5-dimethylimidazolidine-2,4-dione; palladium 10% on activated carbon; benzotriazol-1-yloxyl-tris-(pyrrolidino)-phosphonium hexafluorophosphate; hydrogen; N-ethyl-N,N-diisopropylamine; lithium iodide; dibenzoyl peroxide;
In
pyridine; methanol; tetrachloromethane; dichloromethane; diethylamine; N,N-dimethyl-formamide; isopropyl alcohol; butan-1-ol;
DOI:10.1021/acs.jmedchem.6b00827