反应详情

A solution of benzyl 3-(1-(6-(2-methoxyethoxy)-1H-indol-3-yl)-2-nitropropyl)-2-methylphenylcarbamate (1.6194 g, 3.13 mmol), ammonium acetate (2.51 g, 46.9 mmol) and zinc (3.07 g, 46.9 mmol) in methanol (Ratio: 1.000, Volume: 57.9 ml) and tetrahydrofuran (Ratio: 1.000, Volume: 57.9 ml) was stirred under nitrogen. After 5 h, the reaction was diluted with EtOAc and filtered through a wad of CELITE®. The filtrate was concentrated in vacuo, and the residue was dissolved in EtOAc (75 mL) and saturated aqueous NaHCO3 (30 mL). The layers were separated, and the aqueous layer was extracted with EtOAc (2×75 mL). The organic layers were combined, dried over MgSO4, filtered and concentrated in vacuo to give benzyl 3-(2-amino-1-(6-(2-methoxyethoxy)-1H-indol-3-yl)propyl)-2-methylphenylcarbamate (1.3975 g, 2.87 mmol, 92% yield, mixture of 2 isomers) as a colorless oil, LC/MS (M+H)=488.30, 488.30.

1. filtrationfiltered through a wad of CELITE®
2. concentrationThe filtrate was concentrated in vacuo
3. dissolutionthe residue was dissolved in EtOAc (75 mL)
4. customThe layers were separated
5. extractionthe aqueous layer was extracted with EtOAc (2×75 mL)
6. dry with materialdried over MgSO4
7. filtrationfiltered
8. concentrationconcentrated in vacuo