反应详情

To a stirred solution of 2-(1-pyrrolo[2,3-b]pyridin-1-yl-cyclopentyl)-acetamidine; compound with acetic acid (402) (800 mg, 2.65 mmol) and (E)-3-benzyloxy-2-hydroxy-4-oxo-pent-2-enoic acid tert-butyl ester (4) (978 mg, 3.18 mmol) in methanol (80 mL) was added sodium methoxide solution (25% in methanol) (1.7 mL, 7.94 mmol) at 0° C. The reaction mixture was allowed to warm slowly to room temperature and was stirred for 16 h (TLC, ethyl acetate, Rf=0.3). After completion of the reaction, methanol was evaporated to get a crude product which was purified by Combi-Flash column (eluted at 60-70% ethyl acetate in hexane) to get 5-benzyloxy-6-hydroxy-2-(1-pyrrolo[2,3-b]pyridin-1-yl-cyclopentylmethyl)-pyrimidine-4-carboxylic acid tert-butyl ester (403) (1 g, 75%) as a light yellow solid.

1. customwas evaporated
2. customto get a crude product which
3. customwas purified by Combi-Flash column (eluted at 60-70% ethyl acetate in hexane)