Multi-step reaction with 5 steps
1: HOBt, TBTU, diisopropylethylamine / dimethylformamide / 16 h / Ambient temperature
2: 4 N aq. HCl, anisole / CH2Cl2; dioxane / 1.) ice-cooling, 15 min, 2.) r.t., 1 h
3: HOBt, TBTU, diisopropylethylamine / dimethylformamide / 16 h / Ambient temperature
4: 4 N aq. HCl, anisole / CH2Cl2; dioxane / 1.) ice-cooling, 15 min, 2.) r.t., 1 h
5: HOBt, 1-ethyl-3-<3-(N,N-dimethylamino)propyl>carbodiimide / dimethylformamide / 1.) 0 deg C, 1.5 h, 2.) r.t., 2 h
With
hydrogenchloride; benzotriazol-1-ol; O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate; methoxybenzene; N-(3-dimethylaminopropyl)-N-ethylcarbodiimide; N-ethyl-N,N-diisopropylamine;
In
1,4-dioxane; dichloromethane; N,N-dimethyl-formamide;