Multi-step reaction with 10 steps
1.1: N,N-dimethyl-formamide dimethyl acetal / N,N-dimethyl-formamide / Inert atmosphere; Reflux
1.2: 1 h / 20 °C
2.1: toluene-4-sulfonic acid / toluene / 6 h / Reflux
3.1: potassium carbonate / N,N-dimethyl-formamide / 4 h / 20 - 100 °C / Inert atmosphere
4.1: 3-chloro-benzenecarboperoxoic acid / dichloromethane / 16 h / 0 - 20 °C
5.1: water; pyridinium p-toluenesulfonate / acetone / 0.12 h / 165 °C / Microwave irradiation
6.1: phosphorus pentoxide; triethyl phosphate / tert-butyl methyl ether / 6 h / Inert atmosphere; Reflux
6.2: 2 h / 90 °C / Neat (no solvent); Inert atmosphere
7.1: morpholine / tetrakis(triphenylphosphine) palladium(0) / tetrahydrofuran / 0.5 h / 20 °C / Inert atmosphere
8.1: N-ethyl-N,N-diisopropylamine; ammonia; HATU / N,N-dimethyl-formamide; 1,4-dioxane / 6 h / 20 °C / Inert atmosphere
9.1: Burgess Reagent / tetrahydrofuran / 1.25 h / 20 °C / Inert atmosphere
10.1: Daicel Chiralpak IC, 5 μm; column dimensions: 250 mm x 20 mm / acetonitrile; methanol / 30 °C / Resolution of racemate
With
morpholine; Burgess Reagent; triethyl phosphate; phosphorus pentoxide; ammonia; water; pyridinium p-toluenesulfonate; potassium carbonate; toluene-4-sulfonic acid; N,N-dimethyl-formamide dimethyl acetal; N-ethyl-N,N-diisopropylamine; 3-chloro-benzenecarboperoxoic acid; HATU;
tetrakis(triphenylphosphine) palladium(0);
In
tetrahydrofuran; 1,4-dioxane; methanol; dichloromethane; tert-butyl methyl ether; N,N-dimethyl-formamide; acetone; toluene; acetonitrile;