反应详情

5-Amino-1-ethyl-7-fluoro-1,3-dihydro-indol-2-one (2.25 g, 11.6 mmol), (S)-oxiranylmethyl-carbamic acid tert-butyl ester (2.00 g, 11.6 mmol) and lithium trifluoromethanesulfonate (1.80 g, 11.6 mmol) in acetonitrile (12 ml) are heated at 90° C. for 20 hours. The reaction mixture is diluted with ethyl acetate, washed with water and brine, dried (Na2SO4) and evaporated. Final purification by flash chromatography (70% Ethyl acetate/hexane) gives the title compound as a yellow-brown foamy solid. HPLC r.t. 3.95 min; MS for C 18H26FN3O4 m/z 368.3 (M+H)+.

1. washwashed with water and brine
2. dry with materialdried (Na2SO4)
3. customevaporated
4. customFinal purification by flash chromatography (70% Ethyl acetate/hexane)