Multi-step reaction with 9 steps
1.1: diphenyl phosphoryl azide; triethylamine / benzene / 2 h / Inert atmosphere
2.1: Diphenylmethane / 3.5 h / 90 °C / Inert atmosphere
3.1: N-Bromosuccinimide / acetonitrile / 3.5 h / Reflux; Inert atmosphere
4.1: trichlorophosphate / 5 h / Reflux; Inert atmosphere
5.1: n-butyllithium / hexane; tetrahydrofuran / 0.75 h / 65 °C / Inert atmosphere
5.2: 0.75 h / 65 °C / Inert atmosphere
5.3: 0.5 h / -60 - -40 °C
6.1: diazomethyl-trimethyl-silane / hexane; acetonitrile / 14 h / 0 - 20 °C / Inert atmosphere
7.1: potassium tert-butylate / dimethyl sulfoxide / 3.5 h / 10 - 20 °C / Sonication; Inert atmosphere
8.1: N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate; N-ethyl-N,N-diisopropylamine / dichloromethane / 16 h / Inert atmosphere
9.1: hydrogenchloride / methanol / 2 h / Reflux; Inert atmosphere
With
hydrogenchloride; N-Bromosuccinimide; n-butyllithium; diphenyl phosphoryl azide; potassium tert-butylate; triethylamine; N-ethyl-N,N-diisopropylamine; N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate; trichlorophosphate; diazomethyl-trimethyl-silane;
In
tetrahydrofuran; methanol; hexane; dichloromethane; Diphenylmethane; dimethyl sulfoxide; acetonitrile; benzene;
DOI:10.1021/jm500297k