Multi-step reaction with 7 steps
1.1: chloro-trimethyl-silane; 1,1,1,3,3,3-hexamethyl-disilazane; pyridine / Reflux; Inert atmosphere
1.2: 0.13 h / 0 - 150 °C / Inert atmosphere; Microwave irradiation
2.1: ammonia / methanol / 48 h / 25 °C / Inert atmosphere
3.1: formic acid; Pd(OH)2/C / methanol / 55 °C / Inert atmosphere
3.2: 3 h / 25 °C / Inert atmosphere
4.1: 1H-imidazole / N,N-dimethyl-formamide / 18 h / 25 °C / Inert atmosphere
5.1: dmap; p-Tolyl chlorothionoformate / acetonitrile / 2 h / 25 °C / Inert atmosphere
5.2: 3 h / 110 - 120 °C / Inert atmosphere
6.1: ammonium fluoride / methanol / 48 h / 55 °C / Inert atmosphere
7.1: 1-methyl-1H-imidazole / tetrahydrofuran / 48 h / 25 °C / Inert atmosphere
With
pyridine; 1H-imidazole; 1-methyl-1H-imidazole; dmap; ammonium fluoride; chloro-trimethyl-silane; formic acid; p-Tolyl chlorothionoformate; Pd(OH)2/C; ammonia; 1,1,1,3,3,3-hexamethyl-disilazane;
In
tetrahydrofuran; methanol; N,N-dimethyl-formamide; acetonitrile;
1.2: |Vorbrueggen Nucleoside Synthesis / 5.1: |Barton-McCombie Deoxygenation / 5.2: |Barton-McCombie Deoxygenation;
DOI:10.1021/jo500659e