Multi-step reaction with 9 steps
1.1: acetyl chloride; hydrogenchloride / methanol / 1.5 h / 0 - 40 °C
2.1: N-ethyl-N,N-diisopropylamine / dichloromethane / 18 h / 0 - 20 °C
2.2: 16 h / 20 °C
3.1: diethylamine / isopropyl alcohol; n-heptane / 25 °C / Resolution of racemate
4.1: potassium carbonate / acetonitrile / 16 h / 20 °C
5.1: hydrogenchloride / methanol; 1,4-dioxane / 16 h / 20 °C
6.1: pyridine / 17 h / 0 - 20 °C
7.1: lithium hydroxide; water / tetrahydrofuran / 16 h / 20 °C
8.1: N-ethyl-N,N-diisopropylamine; N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate / N,N-dimethyl-formamide / 0.33 h / 20 °C
8.2: 18 h / 20 °C
9.1: triethylamine / methanol; acetonitrile / 0.17 h
9.2: 1 h / 20 °C
With
pyridine; hydrogenchloride; water; potassium carbonate; diethylamine; triethylamine; N-ethyl-N,N-diisopropylamine; acetyl chloride; N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate; lithium hydroxide;
In
tetrahydrofuran; 1,4-dioxane; methanol; n-heptane; dichloromethane; N,N-dimethyl-formamide; isopropyl alcohol; acetonitrile;