Multi-step reaction with 5 steps
1.1: N-ethyl-N,N-diisopropylamine; O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate / N,N-dimethyl-formamide / 15 h / 20 °C
2.1: water; lithium hydroxide / tetrahydrofuran / 0.5 h / 20 °C
2.2: pH 5 / Cooling with ice
3.1: N-ethyl-N,N-diisopropylamine; O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate / N,N-dimethyl-formamide
4.1: trifluoroacetic acid / dichloromethane / 20 °C
5.1: pyridine / 2 h / 20 °C
With
pyridine; water; O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate; N-ethyl-N,N-diisopropylamine; trifluoroacetic acid; lithium hydroxide;
In
tetrahydrofuran; dichloromethane; N,N-dimethyl-formamide;