Multi-step reaction with 9 steps
1.1: aq. NaOH / dioxane / 20 °C
2.1: 80 percent / Dess-Martin periodane / CH2Cl2 / 3 h / 20 °C
3.1: 44 percent / Cu(OTf)2 / methanol / 4 h / 20 °C
4.1: TFA / CH2Cl2 / 3 h / 20 °C
5.1: 10 percent / TEA / acetonitrile / 20 °C
6.1: H2 / Pd/C / methanol / 8 h / 20 °C
7.1: 2-(1H-benzotriazol-1-yl)-1,1,3,3-tetramethyluronium*BF4; TEA / dimethylformamide / 0.17 h / 20 °C
7.2: 10 percent / dimethylformamide
8.1: H2 / Pd/C / methanol / 8 h / 20 °C
9.1: 2-(1H-benzotriazol-1-yl)-1,1,3,3-tetramethyluronium*BF4; TEA / dimethylformamide / 0.17 h / 20 °C
9.2: 17 percent / dimethylformamide
With
sodium hydroxide; TEA; hydrogen; copper(II) bis(trifluoromethanesulfonate); Dess-Martin periodane; O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate; trifluoroacetic acid;
palladium on activated charcoal;
In
1,4-dioxane; methanol; dichloromethane; N,N-dimethyl-formamide; acetonitrile;
2.1: Dess-Martin oxidation;
DOI:10.1021/jm0499209