反应详情

6.55 g of (1S,2S)-6-fluoro-1-isopropyl-2-(2-methylamino-ethyl)-1,2,3,4-tetrahydro-naphthalen-2-ol were dissolved in DCM (138 mL)/AcOH (15 mL). 5.36 g of 3-methoxy-2-methoxymethyl-2-methyl-N-(3-oxo-propyl)-propionamide and 6.39 g of sodium cyanoborohydride were added. The reaction mixture was stirred for 2 h at room temperature, quenched with sat.-NaHCO3 and extracted with DCM. The organic phase was washed with brine, dried over anh. Na2SO4 and concentrated in vacuo. The resulting crude material was purified by CC using DCM/MeOH/NEt3 from 100/0/1 to 40/1/0.4 as eluant to yield 10.57 g of N-(3-{[2-((1S,2S)-6-Fluoro-2-hydroxy-1-isopropyl-1,2,3,4-tetrahydro-naphthalen-2-yl)-ethyl]-methyl-amino}-propyl)-3-methoxy-2-methoxymethyl-2-methyl-propionamide as amber resin.

1. customquenched with sat.-NaHCO3
2. extractionextracted with DCM
3. washThe organic phase was washed with brine
4. dry with materialdried over anh. Na2SO4
5. concentrationconcentrated in vacuo
6. customThe resulting crude material was purified by CC