反应详情

温度

0 °C

To a solution of 2.73 g of (1S,2S)-6-fluoro-1-isopropyl-2-(2-{[3-(3-methoxy-2-methoxymethyl-2-methyl-propylamino)-propyl]-methyl-amino}-ethyl)-1,2,3,4-tetrahydro-naphthalen-2-ol in DCM (29 mL) was added at 0° C., 1.5 mL of DIPEA and 1.1 mL of fluoroacetyl chloride. The mixture was stirred for 20 min at 0° C. then allowed to warm up to rt for 1 h and quenched with sat.-NaHCO3. The organic phase was dried over anh. Na2SO4 and concentrated in vacuo. The resulting crude ester was dissolved in EtOH (29 mL) and treated with 15 mL of a 1M NaOH solution. The mixture was stirred for 15 min at rt and concentrated in vacuo. The resulting residue was taken up in DCM and washed with sat.-NaHCO3 and brine. The organic phase was dried over anh. Na2SO4 and concentrated in vacuo. The resulting crude was purified by CC using EtOAc/MeOH/NEt3 from 100/0/1 to 90/10/1 to yield 2.07 g of 2-fluoro-N-(3-{[2-((1S,2S)-6-fluoro-2-hydroxy-1-isopropyl-1,2,3,4-tetrahydro-naphthalen-2-yl)-ethyl]-methyl-amino}-propyl)-N-(3-methoxy-2-methoxymethyl-2-methyl-propyl)-acetamide as orange oil.

1. temperatureto warm up to rt for 1 h
2. customquenched with sat.-NaHCO3
3. dry with materialThe organic phase was dried over anh. Na2SO4
4. concentrationconcentrated in vacuo
5. dissolutionThe resulting crude ester was dissolved in EtOH (29 mL)
6. additiontreated with 15 mL of a 1M NaOH solution
7. stirringThe mixture was stirred for 15 min at rt
8. concentrationconcentrated in vacuo
9. washwashed with sat.-NaHCO3 and brine
10. dry with materialThe organic phase was dried over anh. Na2SO4
11. concentrationconcentrated in vacuo
12. customThe resulting crude was purified by CC