Multi-step reaction with 9 steps
1: 19 percent / dimethylsulfoxide / 5 h / 100 °C
2: triethylamine / CH2Cl2 / 0.17 h / 20 °C
3: sodium azide / dimethylformamide / 14 h / 80 °C
4: 410 mg / hydrogen / Pd/C / dioxane; H2O / 10 h / 20 °C
5: 67 percent / ethyldiisopropylamine / dimethylsulfoxide / 6 h / 120 °C
6: 63 percent / H2SO4 / H2O / 4 h / 80 °C
7: 95 percent / 1-hydroxybenzotriazole; N-methylmorpholine; 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride / dimethylformamide / 13 h / 20 °C
8: 63 percent / hydrogen / Pd/C / tetrahydrofuran / 4 h / 20 °C
9: 66 percent / 1-hydroxybenzotriazole; N-methylmorpholine; 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride / dimethylformamide / 19 h / 20 °C
With
4-methyl-morpholine; sodium azide; sulfuric acid; hydrogen; benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; triethylamine; N-ethyl-N,N-diisopropylamine;
palladium on activated charcoal;
In
tetrahydrofuran; 1,4-dioxane; dichloromethane; water; dimethyl sulfoxide; N,N-dimethyl-formamide;
DOI:10.1016/j.bmc.2006.01.062