Multi-step reaction with 7 steps
1: 81 percent / 6N aq. HCl / 24 h / Ambient temperature
2: 98 percent / 10percent aq. Na2CO3 / dioxane / Ambient temperature
3: 39 percent / HATU, Et3N / CH2Cl2 / 5 h / Ambient temperature
4: 1.) 6N aq. HCl, 2.) (Boc)2O, 10percent Na2CO3 / 1.) reflux, 2.) doxane
5: 91 percent / HATU, DIEA / CH2Cl2 / 18 h / Ambient temperature
6: HOBt, WSCD*HCl / dimethylformamide
7: 1.) H2S, Et3N, 2.) MeI
With
hydrogenchloride; di-tert-butyl dicarbonate; WSCD*HCl; hydrogen sulfide; sodium carbonate; benzotriazol-1-ol; 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; methyl iodide;
In
1,4-dioxane; dichloromethane; N,N-dimethyl-formamide;
DOI:10.1021/jm980126v