反应详情

Prepared from 6-amino-3-ethyl-4-fluoro-1,3-benzoxazol-2(3H)-one (Step 2, 0.90 g, 4.59 mmol), methyl (2R)-glycidate (0.469 g, 4.59 mmol) and lithium trifluoromethanesulfonate (0.716 g, 4.59 mmol) in acetonitrile (10 ml) according to the method of EXAMPLE 86, Step 8 (1.11 g, 81%); MS for C13H15FN2O5 m/z 299 (M+H)+.