Multi-step reaction with 10 steps
1: p-TsOH*H2O / dimethylformamide / 2 h / 50 °C
2: pyridine
3: 60percent acetic acid / H2O / 1 h / 50 °C
4: 310 mg / pyridine / 5 h / -25 °C
5: pyridine
6: 208 mg / sodium azide / dimethylformamide / 6 h / 60 °C
7: 1.) H2 / 1.) 10percent Pd-C / 1.) methanol, room temperature, 2 h; 2.) methanol, 2 h
8: 99 mg / sodium methoxide / methanol / 0.05 h / Ambient temperature
9: 0.1 M aq. potassium hydroxide / dioxane; H2O / 0.17 h / Ambient temperature
10: 1.) N-hydroxysuccinimide, dicyclohexylcarbodiimide; 2.) triethylamine / 1.) N,N-dimethylformamide, room temperature, 1 h; 2.) N,N-dimethylformamide, room temperature, overnight
With
pyridine; potassium hydroxide; 1-hydroxy-pyrrolidine-2,5-dione; sodium azide; hydrogen; sodium methylate; toluene-4-sulfonic acid; acetic acid; triethylamine; dicyclohexyl-carbodiimide;
palladium on activated charcoal;
In
1,4-dioxane; methanol; water; N,N-dimethyl-formamide;
DOI:10.1016/S0008-6215(00)82587-2